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author | John Reck <jreck@google.com> | 2012-12-11 14:42:27 -0800 |
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committer | John Reck <jreck@google.com> | 2012-12-11 14:58:14 -0800 |
commit | 8cb165add72646ba57cf2f072d91351a8544fbc5 (patch) | |
tree | c7f6b927b17fb1fc07d6b8211216ac0bd59a27f9 /src/com/android/gallery3d/glrenderer/CanvasTexture.java | |
parent | 203b6826f9958fbafd1a92b4a99d8d9e20e8b248 (diff) | |
download | android_packages_apps_Snap-8cb165add72646ba57cf2f072d91351a8544fbc5.tar.gz android_packages_apps_Snap-8cb165add72646ba57cf2f072d91351a8544fbc5.tar.bz2 android_packages_apps_Snap-8cb165add72646ba57cf2f072d91351a8544fbc5.zip |
GL packaging refactor
Change-Id: I1d7a95c4f0b91a5ba59030d57cf6865c11b497aa
Diffstat (limited to 'src/com/android/gallery3d/glrenderer/CanvasTexture.java')
-rw-r--r-- | src/com/android/gallery3d/glrenderer/CanvasTexture.java | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/com/android/gallery3d/glrenderer/CanvasTexture.java b/src/com/android/gallery3d/glrenderer/CanvasTexture.java new file mode 100644 index 000000000..bff9d4baa --- /dev/null +++ b/src/com/android/gallery3d/glrenderer/CanvasTexture.java @@ -0,0 +1,52 @@ +/* + * 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 com.android.gallery3d.glrenderer; + +import android.graphics.Bitmap; +import android.graphics.Bitmap.Config; +import android.graphics.Canvas; + +// CanvasTexture is a texture whose content is the drawing on a Canvas. +// The subclasses should override onDraw() to draw on the bitmap. +// By default CanvasTexture is not opaque. +abstract class CanvasTexture extends UploadedTexture { + protected Canvas mCanvas; + private final Config mConfig; + + public CanvasTexture(int width, int height) { + mConfig = Config.ARGB_8888; + setSize(width, height); + setOpaque(false); + } + + @Override + protected Bitmap onGetBitmap() { + Bitmap bitmap = Bitmap.createBitmap(mWidth, mHeight, mConfig); + mCanvas = new Canvas(bitmap); + onDraw(mCanvas, bitmap); + return bitmap; + } + + @Override + protected void onFreeBitmap(Bitmap bitmap) { + if (!inFinalizer()) { + bitmap.recycle(); + } + } + + abstract protected void onDraw(Canvas canvas, Bitmap backing); +} |