| /* |
| * 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; |
| |
| import android.graphics.Bitmap; |
| import android.graphics.Matrix; |
| |
| import java.util.ArrayList; |
| |
| /** |
| * An implementation of display list for OpenGL ES 2.0. |
| */ |
| class GLES20DisplayList extends DisplayList { |
| // These lists ensure that any Bitmaps recorded by a DisplayList are kept alive as long |
| // as the DisplayList is alive. The Bitmaps are populated by the GLES20RecordingCanvas. |
| final ArrayList<Bitmap> mBitmaps = new ArrayList<Bitmap>(5); |
| |
| private GLES20RecordingCanvas mCanvas; |
| private boolean mValid; |
| |
| // Used for debugging |
| private final String mName; |
| |
| // The native display list will be destroyed when this object dies. |
| // DO NOT overwrite this reference once it is set. |
| private DisplayListFinalizer mFinalizer; |
| |
| GLES20DisplayList(String name) { |
| mName = name; |
| } |
| |
| boolean hasNativeDisplayList() { |
| return mValid && mFinalizer != null; |
| } |
| |
| int getNativeDisplayList() { |
| if (!mValid || mFinalizer == null) { |
| throw new IllegalStateException("The display list is not valid."); |
| } |
| return mFinalizer.mNativeDisplayList; |
| } |
| |
| @Override |
| public HardwareCanvas start() { |
| if (mCanvas != null) { |
| throw new IllegalStateException("Recording has already started"); |
| } |
| |
| mValid = false; |
| mCanvas = GLES20RecordingCanvas.obtain(this); |
| mCanvas.start(); |
| return mCanvas; |
| } |
| |
| @Override |
| public void invalidate() { |
| if (mCanvas != null) { |
| mCanvas.recycle(); |
| mCanvas = null; |
| } |
| mValid = false; |
| } |
| |
| @Override |
| public void clear() { |
| if (!mValid) { |
| mBitmaps.clear(); |
| } |
| } |
| |
| @Override |
| public boolean isValid() { |
| return mValid; |
| } |
| |
| @Override |
| public void end() { |
| if (mCanvas != null) { |
| if (mFinalizer != null) { |
| mCanvas.end(mFinalizer.mNativeDisplayList); |
| } else { |
| mFinalizer = new DisplayListFinalizer(mCanvas.end(0)); |
| GLES20Canvas.setDisplayListName(mFinalizer.mNativeDisplayList, mName); |
| } |
| mCanvas.recycle(); |
| mCanvas = null; |
| mValid = true; |
| } |
| } |
| |
| @Override |
| public int getSize() { |
| if (mFinalizer == null) return 0; |
| return GLES20Canvas.getDisplayListSize(mFinalizer.mNativeDisplayList); |
| } |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // Native View Properties |
| /////////////////////////////////////////////////////////////////////////// |
| |
| @Override |
| public void setCaching(boolean caching) { |
| if (hasNativeDisplayList()) { |
| nSetCaching(mFinalizer.mNativeDisplayList, caching); |
| } |
| } |
| |
| @Override |
| public void setClipChildren(boolean clipChildren) { |
| if (hasNativeDisplayList()) { |
| nSetClipChildren(mFinalizer.mNativeDisplayList, clipChildren); |
| } |
| } |
| |
| @Override |
| public void setStaticMatrix(Matrix matrix) { |
| if (hasNativeDisplayList()) { |
| nSetStaticMatrix(mFinalizer.mNativeDisplayList, matrix.native_instance); |
| } |
| } |
| |
| @Override |
| public void setAnimationMatrix(Matrix matrix) { |
| if (hasNativeDisplayList()) { |
| nSetAnimationMatrix(mFinalizer.mNativeDisplayList, |
| (matrix != null) ? matrix.native_instance : 0); |
| } |
| } |
| |
| @Override |
| public void setAlpha(float alpha) { |
| if (hasNativeDisplayList()) { |
| nSetAlpha(mFinalizer.mNativeDisplayList, alpha); |
| } |
| } |
| |
| @Override |
| public void setHasOverlappingRendering(boolean hasOverlappingRendering) { |
| if (hasNativeDisplayList()) { |
| nSetHasOverlappingRendering(mFinalizer.mNativeDisplayList, hasOverlappingRendering); |
| } |
| } |
| |
| @Override |
| public void setTranslationX(float translationX) { |
| if (hasNativeDisplayList()) { |
| nSetTranslationX(mFinalizer.mNativeDisplayList, translationX); |
| } |
| } |
| |
| @Override |
| public void setTranslationY(float translationY) { |
| if (hasNativeDisplayList()) { |
| nSetTranslationY(mFinalizer.mNativeDisplayList, translationY); |
| } |
| } |
| |
| @Override |
| public void setRotation(float rotation) { |
| if (hasNativeDisplayList()) { |
| nSetRotation(mFinalizer.mNativeDisplayList, rotation); |
| } |
| } |
| |
| @Override |
| public void setRotationX(float rotationX) { |
| if (hasNativeDisplayList()) { |
| nSetRotationX(mFinalizer.mNativeDisplayList, rotationX); |
| } |
| } |
| |
| @Override |
| public void setRotationY(float rotationY) { |
| if (hasNativeDisplayList()) { |
| nSetRotationY(mFinalizer.mNativeDisplayList, rotationY); |
| } |
| } |
| |
| @Override |
| public void setScaleX(float scaleX) { |
| if (hasNativeDisplayList()) { |
| nSetScaleX(mFinalizer.mNativeDisplayList, scaleX); |
| } |
| } |
| |
| @Override |
| public void setScaleY(float scaleY) { |
| if (hasNativeDisplayList()) { |
| nSetScaleY(mFinalizer.mNativeDisplayList, scaleY); |
| } |
| } |
| |
| @Override |
| public void setTransformationInfo(float alpha, float translationX, float translationY, |
| float rotation, float rotationX, float rotationY, float scaleX, float scaleY) { |
| if (hasNativeDisplayList()) { |
| nSetTransformationInfo(mFinalizer.mNativeDisplayList, alpha, translationX, translationY, |
| rotation, rotationX, rotationY, scaleX, scaleY); |
| } |
| } |
| |
| @Override |
| public void setPivotX(float pivotX) { |
| if (hasNativeDisplayList()) { |
| nSetPivotX(mFinalizer.mNativeDisplayList, pivotX); |
| } |
| } |
| |
| @Override |
| public void setPivotY(float pivotY) { |
| if (hasNativeDisplayList()) { |
| nSetPivotY(mFinalizer.mNativeDisplayList, pivotY); |
| } |
| } |
| |
| @Override |
| public void setCameraDistance(float distance) { |
| if (hasNativeDisplayList()) { |
| nSetCameraDistance(mFinalizer.mNativeDisplayList, distance); |
| } |
| } |
| |
| @Override |
| public void setLeft(int left) { |
| if (hasNativeDisplayList()) { |
| nSetLeft(mFinalizer.mNativeDisplayList, left); |
| } |
| } |
| |
| @Override |
| public void setTop(int top) { |
| if (hasNativeDisplayList()) { |
| nSetTop(mFinalizer.mNativeDisplayList, top); |
| } |
| } |
| |
| @Override |
| public void setRight(int right) { |
| if (hasNativeDisplayList()) { |
| nSetRight(mFinalizer.mNativeDisplayList, right); |
| } |
| } |
| |
| @Override |
| public void setBottom(int bottom) { |
| if (hasNativeDisplayList()) { |
| nSetBottom(mFinalizer.mNativeDisplayList, bottom); |
| } |
| } |
| |
| @Override |
| public void setLeftTop(int left, int top) { |
| if (hasNativeDisplayList()) { |
| nSetLeftTop(mFinalizer.mNativeDisplayList, left, top); |
| } |
| } |
| |
| @Override |
| public void setLeftTopRightBottom(int left, int top, int right, int bottom) { |
| if (hasNativeDisplayList()) { |
| nSetLeftTopRightBottom(mFinalizer.mNativeDisplayList, left, top, right, bottom); |
| } |
| } |
| |
| @Override |
| public void offsetLeftRight(int offset) { |
| if (hasNativeDisplayList()) { |
| nOffsetLeftRight(mFinalizer.mNativeDisplayList, offset); |
| } |
| } |
| |
| @Override |
| public void offsetTopBottom(int offset) { |
| if (hasNativeDisplayList()) { |
| nOffsetTopBottom(mFinalizer.mNativeDisplayList, offset); |
| } |
| } |
| |
| private static native void nOffsetTopBottom(int displayList, int offset); |
| private static native void nOffsetLeftRight(int displayList, int offset); |
| private static native void nSetLeftTopRightBottom(int displayList, int left, int top, |
| int right, int bottom); |
| private static native void nSetLeftTop(int displayList, int left, int top); |
| private static native void nSetBottom(int displayList, int bottom); |
| private static native void nSetRight(int displayList, int right); |
| private static native void nSetTop(int displayList, int top); |
| private static native void nSetLeft(int displayList, int left); |
| private static native void nSetCameraDistance(int displayList, float distance); |
| private static native void nSetPivotY(int displayList, float pivotY); |
| private static native void nSetPivotX(int displayList, float pivotX); |
| private static native void nSetCaching(int displayList, boolean caching); |
| private static native void nSetClipChildren(int displayList, boolean clipChildren); |
| private static native void nSetAlpha(int displayList, float alpha); |
| private static native void nSetHasOverlappingRendering(int displayList, |
| boolean hasOverlappingRendering); |
| private static native void nSetTranslationX(int displayList, float translationX); |
| private static native void nSetTranslationY(int displayList, float translationY); |
| private static native void nSetRotation(int displayList, float rotation); |
| private static native void nSetRotationX(int displayList, float rotationX); |
| private static native void nSetRotationY(int displayList, float rotationY); |
| private static native void nSetScaleX(int displayList, float scaleX); |
| private static native void nSetScaleY(int displayList, float scaleY); |
| private static native void nSetTransformationInfo(int displayList, float alpha, |
| float translationX, float translationY, float rotation, float rotationX, |
| float rotationY, float scaleX, float scaleY); |
| private static native void nSetStaticMatrix(int displayList, int nativeMatrix); |
| private static native void nSetAnimationMatrix(int displayList, int animationMatrix); |
| |
| |
| /////////////////////////////////////////////////////////////////////////// |
| // Finalization |
| /////////////////////////////////////////////////////////////////////////// |
| |
| private static class DisplayListFinalizer { |
| final int mNativeDisplayList; |
| |
| public DisplayListFinalizer(int nativeDisplayList) { |
| mNativeDisplayList = nativeDisplayList; |
| } |
| |
| @Override |
| protected void finalize() throws Throwable { |
| try { |
| GLES20Canvas.destroyDisplayList(mNativeDisplayList); |
| } finally { |
| super.finalize(); |
| } |
| } |
| } |
| } |