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Diffstat (limited to 'src/com/android/photos/BitmapRegionTileSource.java')
-rw-r--r--src/com/android/photos/BitmapRegionTileSource.java288
1 files changed, 0 insertions, 288 deletions
diff --git a/src/com/android/photos/BitmapRegionTileSource.java b/src/com/android/photos/BitmapRegionTileSource.java
deleted file mode 100644
index 4d1a84ed7..000000000
--- a/src/com/android/photos/BitmapRegionTileSource.java
+++ /dev/null
@@ -1,288 +0,0 @@
-/*
- * Copyright (C) 2013 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.photos;
-
-import android.annotation.TargetApi;
-import android.content.Context;
-import android.content.res.AssetManager;
-import android.content.res.Resources;
-import android.graphics.Bitmap;
-import android.graphics.Bitmap.Config;
-import android.graphics.BitmapFactory;
-import android.graphics.BitmapRegionDecoder;
-import android.graphics.Canvas;
-import android.graphics.Rect;
-import android.net.Uri;
-import android.os.Build;
-import android.os.Build.VERSION_CODES;
-import android.util.Log;
-
-import com.android.gallery3d.common.BitmapUtils;
-import com.android.gallery3d.glrenderer.BasicTexture;
-import com.android.gallery3d.glrenderer.BitmapTexture;
-import com.android.photos.views.TiledImageRenderer;
-
-import java.io.BufferedInputStream;
-import java.io.File;
-import java.io.IOException;
-import java.io.InputStream;
-
-/**
- * A {@link com.android.photos.views.TiledImageRenderer.TileSource} using
- * {@link BitmapRegionDecoder} to wrap a local file
- */
-@TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH_MR1)
-public class BitmapRegionTileSource implements TiledImageRenderer.TileSource {
-
- private static final String TAG = "BitmapRegionTileSource";
-
- private static final boolean REUSE_BITMAP =
- Build.VERSION.SDK_INT >= VERSION_CODES.JELLY_BEAN;
- private static final int GL_SIZE_LIMIT = 2048;
- // This must be no larger than half the size of the GL_SIZE_LIMIT
- // due to decodePreview being allowed to be up to 2x the size of the target
- private static final int MAX_PREVIEW_SIZE = 1024;
-
- BitmapRegionDecoder mDecoder;
- int mWidth;
- int mHeight;
- int mTileSize;
- private BasicTexture mPreview;
- private final int mRotation;
-
- // For use only by getTile
- private Rect mWantRegion = new Rect();
- private Rect mOverlapRegion = new Rect();
- private BitmapFactory.Options mOptions;
- private Canvas mCanvas;
-
- public BitmapRegionTileSource(Context context, String path, int previewSize, int rotation) {
- this(null, context, path, null, 0, previewSize, rotation, false);
- }
-
- public BitmapRegionTileSource(Resources res, Context context, String path, int previewSize, int rotation, boolean assetPath) {
- this(res, context, path, null, 0, previewSize, rotation, assetPath);
- }
-
- public BitmapRegionTileSource(Context context, Uri uri, int previewSize, int rotation) {
- this(null, context, null, uri, 0, previewSize, rotation, false);
- }
-
- public BitmapRegionTileSource(Resources res,
- Context context, int resId, int previewSize, int rotation) {
- this(res, context, null, null, resId, previewSize, rotation, false);
- }
-
- private BitmapRegionTileSource(Resources res,
- Context context, String path, Uri uri, int resId, int previewSize, int rotation, boolean assetPath) {
- mTileSize = TiledImageRenderer.suggestedTileSize(context);
- mRotation = rotation;
- try {
- if (path != null && !assetPath) {
- mDecoder = BitmapRegionDecoder.newInstance(path, true);
- } else if (path != null && res != null && assetPath) {
- AssetManager am = res.getAssets();
- String[] pathImages = am.list(path);
- if (pathImages == null || pathImages.length == 0) {
- throw new IOException("did not find any images in path: " + path);
- }
- InputStream is = am.open(path + File.separator + pathImages[0]);
- BufferedInputStream bis = new BufferedInputStream(is);
- mDecoder = BitmapRegionDecoder.newInstance(bis, true);
- } else if (uri != null) {
- InputStream is = context.getContentResolver().openInputStream(uri);
- BufferedInputStream bis = new BufferedInputStream(is);
- mDecoder = BitmapRegionDecoder.newInstance(bis, true);
- } else {
- InputStream is = res.openRawResource(resId);
- BufferedInputStream bis = new BufferedInputStream(is);
- mDecoder = BitmapRegionDecoder.newInstance(bis, true);
- }
- mWidth = mDecoder.getWidth();
- mHeight = mDecoder.getHeight();
- } catch (IOException e) {
- Log.w("BitmapRegionTileSource", "ctor failed", e);
- }
- mOptions = new BitmapFactory.Options();
- mOptions.inPreferredConfig = Bitmap.Config.ARGB_8888;
- mOptions.inPreferQualityOverSpeed = true;
- mOptions.inTempStorage = new byte[16 * 1024];
- if (previewSize != 0) {
- previewSize = Math.min(previewSize, MAX_PREVIEW_SIZE);
- // Although this is the same size as the Bitmap that is likely already
- // loaded, the lifecycle is different and interactions are on a different
- // thread. Thus to simplify, this source will decode its own bitmap.
- Bitmap preview = decodePreview(res, context, path, uri, resId, previewSize, assetPath);
- if (preview.getWidth() <= GL_SIZE_LIMIT && preview.getHeight() <= GL_SIZE_LIMIT) {
- mPreview = new BitmapTexture(preview);
- } else {
- Log.w(TAG, String.format(
- "Failed to create preview of apropriate size! "
- + " in: %dx%d, out: %dx%d",
- mWidth, mHeight,
- preview.getWidth(), preview.getHeight()));
- }
- }
- }
-
- @Override
- public int getTileSize() {
- return mTileSize;
- }
-
- @Override
- public int getImageWidth() {
- return mWidth;
- }
-
- @Override
- public int getImageHeight() {
- return mHeight;
- }
-
- @Override
- public BasicTexture getPreview() {
- return mPreview;
- }
-
- @Override
- public int getRotation() {
- return mRotation;
- }
-
- @Override
- public Bitmap getTile(int level, int x, int y, Bitmap bitmap) {
- int tileSize = getTileSize();
- if (!REUSE_BITMAP) {
- return getTileWithoutReusingBitmap(level, x, y, tileSize);
- }
-
- int t = tileSize << level;
- mWantRegion.set(x, y, x + t, y + t);
-
- if (bitmap == null) {
- bitmap = Bitmap.createBitmap(tileSize, tileSize, Bitmap.Config.ARGB_8888);
- }
-
- mOptions.inSampleSize = (1 << level);
- mOptions.inBitmap = bitmap;
-
- try {
- bitmap = mDecoder.decodeRegion(mWantRegion, mOptions);
- } finally {
- if (mOptions.inBitmap != bitmap && mOptions.inBitmap != null) {
- mOptions.inBitmap = null;
- }
- }
-
- if (bitmap == null) {
- Log.w("BitmapRegionTileSource", "fail in decoding region");
- }
- return bitmap;
- }
-
- private Bitmap getTileWithoutReusingBitmap(
- int level, int x, int y, int tileSize) {
-
- int t = tileSize << level;
- mWantRegion.set(x, y, x + t, y + t);
-
- mOverlapRegion.set(0, 0, mWidth, mHeight);
-
- mOptions.inSampleSize = (1 << level);
- Bitmap bitmap = mDecoder.decodeRegion(mOverlapRegion, mOptions);
-
- if (bitmap == null) {
- Log.w(TAG, "fail in decoding region");
- }
-
- if (mWantRegion.equals(mOverlapRegion)) {
- return bitmap;
- }
-
- Bitmap result = Bitmap.createBitmap(tileSize, tileSize, Config.ARGB_8888);
- if (mCanvas == null) {
- mCanvas = new Canvas();
- }
- mCanvas.setBitmap(result);
- mCanvas.drawBitmap(bitmap,
- (mOverlapRegion.left - mWantRegion.left) >> level,
- (mOverlapRegion.top - mWantRegion.top) >> level, null);
- mCanvas.setBitmap(null);
- return result;
- }
-
- /**
- * Note that the returned bitmap may have a long edge that's longer
- * than the targetSize, but it will always be less than 2x the targetSize
- */
- private Bitmap decodePreview(
- Resources res, Context context, String file, Uri uri, int resId, int targetSize, boolean assetPath) {
- float scale = (float) targetSize / Math.max(mWidth, mHeight);
- mOptions.inSampleSize = BitmapUtils.computeSampleSizeLarger(scale);
- mOptions.inJustDecodeBounds = false;
-
- Bitmap result = null;
- if (file != null && res != null && assetPath) {
- try {
- AssetManager am = res.getAssets();
- String[] pathImages = am.list(file);
- if (pathImages == null || pathImages.length == 0) {
- throw new IOException("did not find any images in path: " + file);
- }
- InputStream is = am.open(file + File.separator + pathImages[0]);
- BufferedInputStream bis = new BufferedInputStream(is);
- result = BitmapFactory.decodeStream(bis, null, mOptions);
- } catch (IOException e) {
- Log.w("BitmapRegionTileSource", "getting preview failed", e);
- }
- } else if (file != null) {
- result = BitmapFactory.decodeFile(file, mOptions);
- } else if (uri != null) {
- try {
- InputStream is = context.getContentResolver().openInputStream(uri);
- BufferedInputStream bis = new BufferedInputStream(is);
- result = BitmapFactory.decodeStream(bis, null, mOptions);
- } catch (IOException e) {
- Log.w("BitmapRegionTileSource", "getting preview failed", e);
- }
- } else {
- result = BitmapFactory.decodeResource(res, resId, mOptions);
- }
- if (result == null) {
- return null;
- }
-
- // We need to resize down if the decoder does not support inSampleSize
- // or didn't support the specified inSampleSize (some decoders only do powers of 2)
- scale = (float) targetSize / (float) (Math.max(result.getWidth(), result.getHeight()));
-
- if (scale <= 0.5) {
- result = BitmapUtils.resizeBitmapByScale(result, scale, true);
- }
- return ensureGLCompatibleBitmap(result);
- }
-
- private static Bitmap ensureGLCompatibleBitmap(Bitmap bitmap) {
- if (bitmap == null || bitmap.getConfig() != null) {
- return bitmap;
- }
- Bitmap newBitmap = bitmap.copy(Config.ARGB_8888, false);
- bitmap.recycle();
- return newBitmap;
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-01 05:41:38 +0000