Merge "Add ability to decode only image information with ImageDecoder" into udc-dev am: c5557807e9 (e00b4100) · Commits · e / os / android_frameworks_base

core/tests/coretests/res/drawable-nodpi/animated_webp.webp

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core/tests/coretests/src/android/graphics/ImageDecoderTest.java

0 → 100644

+80 −0

Original line number	Diff line number	Diff line
		/*
		* Copyright (C) 2023 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 static com.google.common.truth.Truth.assertThat;

		import android.content.Context;

		import androidx.test.ext.junit.runners.AndroidJUnit4;
		import androidx.test.filters.SmallTest;
		import androidx.test.platform.app.InstrumentationRegistry;

		import com.android.frameworks.coretests.R;

		import org.junit.Test;
		import org.junit.runner.RunWith;

		import java.io.File;
		import java.io.IOException;

		@SmallTest
		@RunWith(AndroidJUnit4.class)
		public class ImageDecoderTest {

		private final Context mContext = InstrumentationRegistry.getInstrumentation().getContext();

		@Test
		public void onDecodeHeader_png_returnsPopulatedData() throws IOException {
		ImageDecoder.Source src =
		ImageDecoder.createSource(mContext.getResources(), R.drawable.gettysburg);
		ImageDecoder.ImageInfo info = ImageDecoder.decodeHeader(src);
		assertThat(info.getSize().getWidth()).isEqualTo(432);
		assertThat(info.getSize().getHeight()).isEqualTo(291);
		assertThat(info.getMimeType()).isEqualTo("image/png");
		assertThat(info.getColorSpace()).isNotNull();
		assertThat(info.getColorSpace().getModel()).isEqualTo(ColorSpace.Model.RGB);
		assertThat(info.getColorSpace().getId()).isEqualTo(0);
		assertThat(info.isAnimated()).isFalse();
		}

		@Test
		public void onDecodeHeader_animatedWebP_returnsPopulatedData() throws IOException {
		ImageDecoder.Source src =
		ImageDecoder.createSource(mContext.getResources(), R.drawable.animated_webp);
		ImageDecoder.ImageInfo info = ImageDecoder.decodeHeader(src);
		assertThat(info.getSize().getWidth()).isEqualTo(278);
		assertThat(info.getSize().getHeight()).isEqualTo(183);
		assertThat(info.getMimeType()).isEqualTo("image/webp");
		assertThat(info.getColorSpace()).isNotNull();
		assertThat(info.getColorSpace().getModel()).isEqualTo(ColorSpace.Model.RGB);
		assertThat(info.getColorSpace().getId()).isEqualTo(0);
		assertThat(info.isAnimated()).isTrue();
		}

		@Test(expected = IOException.class)
		public void onDecodeHeader_invalidSource_throwsException() throws IOException {
		ImageDecoder.Source src = ImageDecoder.createSource(new File("/this/file/does/not/exist"));
		ImageDecoder.decodeHeader(src);
		}

		@Test(expected = IOException.class)
		public void onDecodeHeader_invalidResource_throwsException() throws IOException {
		ImageDecoder.Source src =
		ImageDecoder.createSource(mContext.getResources(), R.drawable.box);
		ImageDecoder.decodeHeader(src);
		}
		}

graphics/java/android/graphics/ImageDecoder.java

+48 −13

Original line number	Diff line number	Diff line
		@@ -627,11 +627,19 @@ public final class ImageDecoder implements AutoCloseable {
		*/
		public static class ImageInfo {
		private final Size mSize;
		private ImageDecoder mDecoder;
		private final boolean mIsAnimated;
		private final String mMimeType;
		private final ColorSpace mColorSpace;

		private ImageInfo(@NonNull ImageDecoder decoder) {
		mSize = new Size(decoder.mWidth, decoder.mHeight);
		mDecoder = decoder;
		private ImageInfo(
		@NonNull Size size,
		boolean isAnimated,
		@NonNull String mimeType,
		@Nullable ColorSpace colorSpace) {
		mSize = size;
		mIsAnimated = isAnimated;
		mMimeType = mimeType;
		mColorSpace = colorSpace;
		}

		/**
		@@ -647,7 +655,7 @@ public final class ImageDecoder implements AutoCloseable {
		*/
		@NonNull
		public String getMimeType() {
		return mDecoder.getMimeType();
		return mMimeType;
		}

		/**
		@@ -657,7 +665,7 @@ public final class ImageDecoder implements AutoCloseable {
		* return an {@link AnimatedImageDrawable}.</p>
		*/
		public boolean isAnimated() {
		return mDecoder.mAnimated;
		return mIsAnimated;
		}

		/**
		@@ -669,7 +677,7 @@ public final class ImageDecoder implements AutoCloseable {
		*/
		@Nullable
		public ColorSpace getColorSpace() {
		return mDecoder.getColorSpace();
		return mColorSpace;
		}
		};

		@@ -1798,13 +1806,40 @@ public final class ImageDecoder implements AutoCloseable {
		private void callHeaderDecoded(@Nullable OnHeaderDecodedListener listener,
		@NonNull Source src) {
		if (listener != null) {
		ImageInfo info = new ImageInfo(this);
		try {
		ImageInfo info =
		new ImageInfo(
		new Size(mWidth, mHeight), mAnimated, getMimeType(), getColorSpace());
		listener.onHeaderDecoded(this, info, src);
		} finally {
		info.mDecoder = null;
		}
		}

		/**
		* Return {@link ImageInfo} from a {@code Source}.
		*
		* <p>Returns the same {@link ImageInfo} object that a usual decoding process would return as
		* part of {@link OnHeaderDecodedListener}.
		*
		* @param src representing the encoded image.
		* @return ImageInfo describing the image.
		* @throws IOException if {@code src} is not found, is an unsupported format, or cannot be
		* decoded for any reason.
		* @hide
		*/
		@WorkerThread
		@NonNull
		public static ImageInfo decodeHeader(@NonNull Source src) throws IOException {
		Trace.traceBegin(Trace.TRACE_TAG_RESOURCES, "ImageDecoder#decodeHeader");
		try (ImageDecoder decoder = src.createImageDecoder(true /preferAnimation/)) {
		// We don't want to leak decoder so resolve all properties immediately.
		return new ImageInfo(
		new Size(decoder.mWidth, decoder.mHeight),
		decoder.mAnimated,
		decoder.getMimeType(),
		decoder.getColorSpace());
		} finally {
		// Close the ImageDecoder#decodeHeader trace.
		Trace.traceEnd(Trace.TRACE_TAG_RESOURCES);
		}
		}

		/**