| /* |
| * Copyright (C) 2007 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.graphics; |
| |
| import android.annotation.NonNull; |
| import android.annotation.UnsupportedAppUsage; |
| |
| /** |
| * Shader used to draw a bitmap as a texture. The bitmap can be repeated or |
| * mirrored by setting the tiling mode. |
| */ |
| public class BitmapShader extends Shader { |
| /** |
| * Prevent garbage collection. |
| * @hide |
| */ |
| @SuppressWarnings({"FieldCanBeLocal", "UnusedDeclaration"}) |
| @UnsupportedAppUsage |
| public Bitmap mBitmap; |
| |
| @UnsupportedAppUsage |
| private int mTileX; |
| @UnsupportedAppUsage |
| private int mTileY; |
| |
| /** |
| * Call this to create a new shader that will draw with a bitmap. |
| * |
| * @param bitmap The bitmap to use inside the shader |
| * @param tileX The tiling mode for x to draw the bitmap in. |
| * @param tileY The tiling mode for y to draw the bitmap in. |
| */ |
| public BitmapShader(@NonNull Bitmap bitmap, @NonNull TileMode tileX, @NonNull TileMode tileY) { |
| this(bitmap, tileX.nativeInt, tileY.nativeInt); |
| } |
| |
| private BitmapShader(Bitmap bitmap, int tileX, int tileY) { |
| if (bitmap == null) { |
| throw new IllegalArgumentException("Bitmap must be non-null"); |
| } |
| if (bitmap == mBitmap && tileX == mTileX && tileY == mTileY) { |
| return; |
| } |
| mBitmap = bitmap; |
| mTileX = tileX; |
| mTileY = tileY; |
| } |
| |
| @Override |
| long createNativeInstance(long nativeMatrix) { |
| return nativeCreate(nativeMatrix, mBitmap, mTileX, mTileY); |
| } |
| |
| private static native long nativeCreate(long nativeMatrix, Bitmap bitmap, |
| int shaderTileModeX, int shaderTileModeY); |
| } |