BitmapFactory: Support basic options (#1853)
* BitmapFactory: Support basic options * Bitmap: Support querying image type * Bitmap: Support all BufferedImage image types Required to be able to construct a bitmap with exactly the same parameters
This commit is contained in:
Constantin Piber
@@ -2,6 +2,8 @@ package android.graphics;
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import android.annotation.ColorInt;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.util.Log;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.io.IOException;
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@@ -58,7 +60,23 @@ public final class Bitmap {
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ARGB_8888(5),
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RGBA_F16(6),
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HARDWARE(7),
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RGBA_1010102(8);
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RGBA_1010102(8),
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_TYPE_3BYTE_BGR(BufferedImage.TYPE_3BYTE_BGR),
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_TYPE_4BYTE_ABGR(BufferedImage.TYPE_4BYTE_ABGR),
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_TYPE_4BYTE_ABGR_PRE(BufferedImage.TYPE_4BYTE_ABGR_PRE),
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_TYPE_BYTE_BINARY(BufferedImage.TYPE_BYTE_BINARY),
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_TYPE_BYTE_GRAY(BufferedImage.TYPE_BYTE_GRAY),
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_TYPE_BYTE_INDEXED(BufferedImage.TYPE_BYTE_INDEXED),
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_TYPE_CUSTOM(BufferedImage.TYPE_CUSTOM),
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_TYPE_INT_ARGB(BufferedImage.TYPE_INT_ARGB),
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_TYPE_INT_ARGB_PRE(BufferedImage.TYPE_INT_ARGB_PRE),
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_TYPE_INT_BGR(BufferedImage.TYPE_INT_BGR),
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_TYPE_INT_RGB(BufferedImage.TYPE_INT_RGB),
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_TYPE_USHORT_555_RGB(BufferedImage.TYPE_USHORT_555_RGB),
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_TYPE_USHORT_565_RGB(BufferedImage.TYPE_USHORT_565_RGB),
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_TYPE_USHORT_GRAY(BufferedImage.TYPE_USHORT_GRAY),
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;
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final int nativeInt;
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@@ -83,11 +101,62 @@ public final class Bitmap {
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return BufferedImage.TYPE_USHORT_565_RGB;
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case ARGB_8888:
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return BufferedImage.TYPE_INT_ARGB;
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case _TYPE_3BYTE_BGR:
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case _TYPE_4BYTE_ABGR:
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case _TYPE_4BYTE_ABGR_PRE:
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case _TYPE_BYTE_BINARY:
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case _TYPE_BYTE_GRAY:
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case _TYPE_BYTE_INDEXED:
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case _TYPE_CUSTOM:
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case _TYPE_INT_ARGB:
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case _TYPE_INT_ARGB_PRE:
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case _TYPE_INT_BGR:
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case _TYPE_INT_RGB:
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case _TYPE_USHORT_555_RGB:
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case _TYPE_USHORT_565_RGB:
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case _TYPE_USHORT_GRAY:
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return config.ordinal();
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default:
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throw new UnsupportedOperationException("Bitmap.Config(" + config + ") not supported");
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}
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}
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private static Config bufferedImageTypeToConfig(int type) {
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switch (type) {
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case BufferedImage.TYPE_BYTE_GRAY:
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return Config.ALPHA_8;
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case BufferedImage.TYPE_USHORT_565_RGB:
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return Config.RGB_565;
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case BufferedImage.TYPE_INT_ARGB:
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return Config.ARGB_8888;
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case BufferedImage.TYPE_3BYTE_BGR:
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return Config._TYPE_3BYTE_BGR;
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case BufferedImage.TYPE_4BYTE_ABGR:
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return Config._TYPE_4BYTE_ABGR;
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case BufferedImage.TYPE_4BYTE_ABGR_PRE:
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return Config._TYPE_4BYTE_ABGR_PRE;
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case BufferedImage.TYPE_BYTE_BINARY:
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return Config._TYPE_BYTE_BINARY;
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case BufferedImage.TYPE_BYTE_INDEXED:
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return Config._TYPE_BYTE_INDEXED;
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case BufferedImage.TYPE_CUSTOM:
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return Config._TYPE_CUSTOM;
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case BufferedImage.TYPE_INT_ARGB_PRE:
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return Config._TYPE_INT_ARGB_PRE;
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case BufferedImage.TYPE_INT_BGR:
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return Config._TYPE_INT_BGR;
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case BufferedImage.TYPE_INT_RGB:
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return Config._TYPE_INT_RGB;
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case BufferedImage.TYPE_USHORT_555_RGB:
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return Config._TYPE_USHORT_555_RGB;
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case BufferedImage.TYPE_USHORT_GRAY:
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return Config._TYPE_USHORT_GRAY;
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default:
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Log.w("Bitmap", "Encountered unsupported image type " + type);
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return null;
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}
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}
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/**
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* Common code for checking that x and y are >= 0
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*
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@@ -264,4 +333,10 @@ public final class Bitmap {
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public void recycle() {
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// do nothing
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}
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@Nullable
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public final Config getConfig() {
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int type = image.getType();
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return bufferedImageTypeToConfig(type);
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}
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}
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@@ -8,13 +8,462 @@ import java.util.Iterator;
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import javax.imageio.ImageIO;
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import javax.imageio.ImageReader;
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import javax.imageio.stream.ImageInputStream;
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import androidx.annotation.Nullable;
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public class BitmapFactory {
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public static class Options {
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/**
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* Create a default Options object, which if left unchanged will give
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* the same result from the decoder as if null were passed.
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*/
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public Options() {
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inScaled = true;
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inPremultiplied = true;
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}
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/**
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* If set, decode methods that take the Options object will attempt to
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* reuse this bitmap when loading content. If the decode operation
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* cannot use this bitmap, the decode method will throw an
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* {@link java.lang.IllegalArgumentException}. The
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* current implementation necessitates that the reused bitmap be
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* mutable, and the resulting reused bitmap will continue to remain
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* mutable even when decoding a resource which would normally result in
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* an immutable bitmap.</p>
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*
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* <p>You should still always use the returned Bitmap of the decode
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* method and not assume that reusing the bitmap worked, due to the
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* constraints outlined above and failure situations that can occur.
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* Checking whether the return value matches the value of the inBitmap
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* set in the Options structure will indicate if the bitmap was reused,
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* but in all cases you should use the Bitmap returned by the decoding
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* function to ensure that you are using the bitmap that was used as the
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* decode destination.</p>
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*
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* <h3>Usage with BitmapFactory</h3>
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*
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* <p>As of {@link android.os.Build.VERSION_CODES#KITKAT}, any
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* mutable bitmap can be reused by {@link BitmapFactory} to decode any
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* other bitmaps as long as the resulting {@link Bitmap#getByteCount()
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* byte count} of the decoded bitmap is less than or equal to the {@link
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* Bitmap#getAllocationByteCount() allocated byte count} of the reused
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* bitmap. This can be because the intrinsic size is smaller, or its
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* size post scaling (for density / sample size) is smaller.</p>
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*
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* <p class="note">Prior to {@link android.os.Build.VERSION_CODES#KITKAT}
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* additional constraints apply: The image being decoded (whether as a
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* resource or as a stream) must be in jpeg or png format. Only equal
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* sized bitmaps are supported, with {@link #inSampleSize} set to 1.
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* Additionally, the {@link android.graphics.Bitmap.Config
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* configuration} of the reused bitmap will override the setting of
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* {@link #inPreferredConfig}, if set.</p>
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*
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* <h3>Usage with BitmapRegionDecoder</h3>
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*
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* <p>BitmapRegionDecoder will draw its requested content into the Bitmap
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* provided, clipping if the output content size (post scaling) is larger
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* than the provided Bitmap. The provided Bitmap's width, height, and
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* {@link Bitmap.Config} will not be changed.
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*
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* <p class="note">BitmapRegionDecoder support for {@link #inBitmap} was
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* introduced in {@link android.os.Build.VERSION_CODES#JELLY_BEAN}. All
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* formats supported by BitmapRegionDecoder support Bitmap reuse via
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* {@link #inBitmap}.</p>
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*
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* @see Bitmap#reconfigure(int,int, android.graphics.Bitmap.Config)
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*/
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public Bitmap inBitmap;
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/**
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* If set, decode methods will always return a mutable Bitmap instead of
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* an immutable one. This can be used for instance to programmatically apply
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* effects to a Bitmap loaded through BitmapFactory.
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* <p>Can not be set simultaneously with inPreferredConfig =
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* {@link android.graphics.Bitmap.Config#HARDWARE},
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* because hardware bitmaps are always immutable.
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*/
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public boolean inMutable;
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/**
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* If set to true, the decoder will return null (no bitmap), but
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* the <code>out...</code> fields will still be set, allowing the caller to
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* query the bitmap without having to allocate the memory for its pixels.
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*/
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public boolean inJustDecodeBounds;
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/**
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* If set to a value > 1, requests the decoder to subsample the original
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* image, returning a smaller image to save memory. The sample size is
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* the number of pixels in either dimension that correspond to a single
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* pixel in the decoded bitmap. For example, inSampleSize == 4 returns
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* an image that is 1/4 the width/height of the original, and 1/16 the
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* number of pixels. Any value <= 1 is treated the same as 1. Note: the
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* decoder uses a final value based on powers of 2, any other value will
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* be rounded down to the nearest power of 2.
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*/
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public int inSampleSize;
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/**
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* If this is non-null, the decoder will try to decode into this
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* internal configuration. If it is null, or the request cannot be met,
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* the decoder will try to pick the best matching config based on the
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* system's screen depth, and characteristics of the original image such
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* as if it has per-pixel alpha (requiring a config that also does).
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*
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* Image are loaded with the {@link Bitmap.Config#ARGB_8888} config by
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* default.
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*/
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public Bitmap.Config inPreferredConfig = null;
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/**
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* <p>If this is non-null, the decoder will try to decode into this
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* color space. If it is null, or the request cannot be met,
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* the decoder will pick either the color space embedded in the image
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* or the color space best suited for the requested image configuration
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* (for instance {@link ColorSpace.Named#SRGB sRGB} for
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* {@link Bitmap.Config#ARGB_8888} configuration and
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* {@link ColorSpace.Named#EXTENDED_SRGB EXTENDED_SRGB} for
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* {@link Bitmap.Config#RGBA_F16}).</p>
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*
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* <p class="note">Only {@link ColorSpace.Model#RGB} color spaces are
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* currently supported. An <code>IllegalArgumentException</code> will
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* be thrown by the decode methods when setting a non-RGB color space
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* such as {@link ColorSpace.Named#CIE_LAB Lab}.</p>
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*
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* <p class="note">
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* Prior to {@link android.os.Build.VERSION_CODES#UPSIDE_DOWN_CAKE},
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* the specified color space's transfer function must be
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* an {@link ColorSpace.Rgb.TransferParameters ICC parametric curve}. An
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* <code>IllegalArgumentException</code> will be thrown by the decode methods
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* if calling {@link ColorSpace.Rgb#getTransferParameters()} on the
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* specified color space returns null.
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*
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* Starting from {@link android.os.Build.VERSION_CODES#UPSIDE_DOWN_CAKE},
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* non ICC parametric curve transfer function is allowed.
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* E.g., {@link ColorSpace.Named#BT2020_HLG BT2020_HLG}.</p>
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*
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* <p>After decode, the bitmap's color space is stored in
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* {@link #outColorSpace}.</p>
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*/
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public ColorSpace inPreferredColorSpace = null;
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/**
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* If true (which is the default), the resulting bitmap will have its
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* color channels pre-multiplied by the alpha channel.
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*
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* <p>This should NOT be set to false for images to be directly drawn by
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* the view system or through a {@link Canvas}. The view system and
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* {@link Canvas} assume all drawn images are pre-multiplied to simplify
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* draw-time blending, and will throw a RuntimeException when
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* un-premultiplied are drawn.</p>
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*
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* <p>This is likely only useful if you want to manipulate raw encoded
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* image data, e.g. with RenderScript or custom OpenGL.</p>
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*
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* <p>This does not affect bitmaps without an alpha channel.</p>
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*
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* <p>Setting this flag to false while setting {@link #inScaled} to true
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* may result in incorrect colors.</p>
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*
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* @see Bitmap#hasAlpha()
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* @see Bitmap#isPremultiplied()
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* @see #inScaled
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*/
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public boolean inPremultiplied;
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/**
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* @deprecated As of {@link android.os.Build.VERSION_CODES#N}, this is
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* ignored.
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*
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* In {@link android.os.Build.VERSION_CODES#M} and below, if dither is
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* true, the decoder will attempt to dither the decoded image.
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*/
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@Deprecated
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public boolean inDither;
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/**
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* The pixel density to use for the bitmap. This will always result
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* in the returned bitmap having a density set for it (see
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* {@link Bitmap#setDensity(int) Bitmap.setDensity(int)}). In addition,
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* if {@link #inScaled} is set (which it is by default} and this
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* density does not match {@link #inTargetDensity}, then the bitmap
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* will be scaled to the target density before being returned.
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*
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* <p>If this is 0,
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* {@link BitmapFactory#decodeResource(Resources, int)},
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* {@link BitmapFactory#decodeResource(Resources, int, android.graphics.BitmapFactory.Options)},
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* and {@link BitmapFactory#decodeResourceStream}
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* will fill in the density associated with the resource. The other
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* functions will leave it as-is and no density will be applied.
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*
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* @see #inTargetDensity
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* @see #inScreenDensity
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* @see #inScaled
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* @see Bitmap#setDensity(int)
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* @see android.util.DisplayMetrics#densityDpi
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*/
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public int inDensity;
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/**
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* The pixel density of the destination this bitmap will be drawn to.
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* This is used in conjunction with {@link #inDensity} and
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* {@link #inScaled} to determine if and how to scale the bitmap before
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* returning it.
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*
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* <p>If this is 0,
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* {@link BitmapFactory#decodeResource(Resources, int)},
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* {@link BitmapFactory#decodeResource(Resources, int, android.graphics.BitmapFactory.Options)},
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* and {@link BitmapFactory#decodeResourceStream}
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* will fill in the density associated the Resources object's
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* DisplayMetrics. The other
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* functions will leave it as-is and no scaling for density will be
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* performed.
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*
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* @see #inDensity
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* @see #inScreenDensity
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* @see #inScaled
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* @see android.util.DisplayMetrics#densityDpi
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*/
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public int inTargetDensity;
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/**
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* The pixel density of the actual screen that is being used. This is
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* purely for applications running in density compatibility code, where
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* {@link #inTargetDensity} is actually the density the application
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* sees rather than the real screen density.
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*
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* <p>By setting this, you
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* allow the loading code to avoid scaling a bitmap that is currently
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* in the screen density up/down to the compatibility density. Instead,
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* if {@link #inDensity} is the same as {@link #inScreenDensity}, the
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* bitmap will be left as-is. Anything using the resulting bitmap
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* must also used {@link Bitmap#getScaledWidth(int)
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* Bitmap.getScaledWidth} and {@link Bitmap#getScaledHeight
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* Bitmap.getScaledHeight} to account for any different between the
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* bitmap's density and the target's density.
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*
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* <p>This is never set automatically for the caller by
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* {@link BitmapFactory} itself. It must be explicitly set, since the
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* caller must deal with the resulting bitmap in a density-aware way.
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*
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* @see #inDensity
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* @see #inTargetDensity
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* @see #inScaled
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* @see android.util.DisplayMetrics#densityDpi
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*/
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public int inScreenDensity;
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/**
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* When this flag is set, if {@link #inDensity} and
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* {@link #inTargetDensity} are not 0, the
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* bitmap will be scaled to match {@link #inTargetDensity} when loaded,
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* rather than relying on the graphics system scaling it each time it
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* is drawn to a Canvas.
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*
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* <p>BitmapRegionDecoder ignores this flag, and will not scale output
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* based on density. (though {@link #inSampleSize} is supported)</p>
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*
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* <p>This flag is turned on by default and should be turned off if you need
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* a non-scaled version of the bitmap. Nine-patch bitmaps ignore this
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* flag and are always scaled.
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*
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* <p>If {@link #inPremultiplied} is set to false, and the image has alpha,
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* setting this flag to true may result in incorrect colors.
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*/
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public boolean inScaled;
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/**
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* @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this is
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* ignored.
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*
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* In {@link android.os.Build.VERSION_CODES#KITKAT} and below, if this
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* is set to true, then the resulting bitmap will allocate its
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* pixels such that they can be purged if the system needs to reclaim
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* memory. In that instance, when the pixels need to be accessed again
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* (e.g. the bitmap is drawn, getPixels() is called), they will be
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* automatically re-decoded.
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*
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* <p>For the re-decode to happen, the bitmap must have access to the
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* encoded data, either by sharing a reference to the input
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* or by making a copy of it. This distinction is controlled by
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* inInputShareable. If this is true, then the bitmap may keep a shallow
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* reference to the input. If this is false, then the bitmap will
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* explicitly make a copy of the input data, and keep that. Even if
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* sharing is allowed, the implementation may still decide to make a
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* deep copy of the input data.</p>
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*
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* <p>While inPurgeable can help avoid big Dalvik heap allocations (from
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* API level 11 onward), it sacrifices performance predictability since any
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* image that the view system tries to draw may incur a decode delay which
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* can lead to dropped frames. Therefore, most apps should avoid using
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* inPurgeable to allow for a fast and fluid UI. To minimize Dalvik heap
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* allocations use the {@link #inBitmap} flag instead.</p>
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*
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* <p class="note"><strong>Note:</strong> This flag is ignored when used
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* with {@link #decodeResource(Resources, int,
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* android.graphics.BitmapFactory.Options)} or {@link #decodeFile(String,
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* android.graphics.BitmapFactory.Options)}.</p>
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*/
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@Deprecated
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public boolean inPurgeable;
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/**
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* @deprecated As of {@link android.os.Build.VERSION_CODES#LOLLIPOP}, this is
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* ignored.
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*
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* In {@link android.os.Build.VERSION_CODES#KITKAT} and below, this
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* field works in conjunction with inPurgeable. If inPurgeable is false,
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* then this field is ignored. If inPurgeable is true, then this field
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* determines whether the bitmap can share a reference to the input
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* data (inputstream, array, etc.) or if it must make a deep copy.
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*/
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@Deprecated
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public boolean inInputShareable;
|
||||
|
||||
/**
|
||||
* @deprecated As of {@link android.os.Build.VERSION_CODES#N}, this is
|
||||
* ignored. The output will always be high quality.
|
||||
*
|
||||
* In {@link android.os.Build.VERSION_CODES#M} and below, if
|
||||
* inPreferQualityOverSpeed is set to true, the decoder will try to
|
||||
* decode the reconstructed image to a higher quality even at the
|
||||
* expense of the decoding speed. Currently the field only affects JPEG
|
||||
* decode, in the case of which a more accurate, but slightly slower,
|
||||
* IDCT method will be used instead.
|
||||
*/
|
||||
@Deprecated
|
||||
public boolean inPreferQualityOverSpeed;
|
||||
|
||||
/**
|
||||
* The resulting width of the bitmap. If {@link #inJustDecodeBounds} is
|
||||
* set to false, this will be width of the output bitmap after any
|
||||
* scaling is applied. If true, it will be the width of the input image
|
||||
* without any accounting for scaling.
|
||||
*
|
||||
* <p>outWidth will be set to -1 if there is an error trying to decode.</p>
|
||||
*/
|
||||
public int outWidth;
|
||||
|
||||
/**
|
||||
* The resulting height of the bitmap. If {@link #inJustDecodeBounds} is
|
||||
* set to false, this will be height of the output bitmap after any
|
||||
* scaling is applied. If true, it will be the height of the input image
|
||||
* without any accounting for scaling.
|
||||
*
|
||||
* <p>outHeight will be set to -1 if there is an error trying to decode.</p>
|
||||
*/
|
||||
public int outHeight;
|
||||
|
||||
/**
|
||||
* If known, this string is set to the mimetype of the decoded image.
|
||||
* If not known, or there is an error, it is set to null.
|
||||
*/
|
||||
public String outMimeType;
|
||||
|
||||
/**
|
||||
* If known, the config the decoded bitmap will have.
|
||||
* If not known, or there is an error, it is set to null.
|
||||
*/
|
||||
public Bitmap.Config outConfig;
|
||||
|
||||
/**
|
||||
* If known, the color space the decoded bitmap will have. Note that the
|
||||
* output color space is not guaranteed to be the color space the bitmap
|
||||
* is encoded with. If not known (when the config is
|
||||
* {@link Bitmap.Config#ALPHA_8} for instance), or there is an error,
|
||||
* it is set to null.
|
||||
*/
|
||||
public ColorSpace outColorSpace;
|
||||
|
||||
/**
|
||||
* Temp storage to use for decoding. Suggest 16K or so.
|
||||
*/
|
||||
public byte[] inTempStorage;
|
||||
|
||||
/**
|
||||
* @deprecated As of {@link android.os.Build.VERSION_CODES#N}, see
|
||||
* comments on {@link #requestCancelDecode()}.
|
||||
*
|
||||
* Flag to indicate that cancel has been called on this object. This
|
||||
* is useful if there's an intermediary that wants to first decode the
|
||||
* bounds and then decode the image. In that case the intermediary
|
||||
* can check, inbetween the bounds decode and the image decode, to see
|
||||
* if the operation is canceled.
|
||||
*/
|
||||
@Deprecated
|
||||
public boolean mCancel;
|
||||
|
||||
/**
|
||||
* @deprecated As of {@link android.os.Build.VERSION_CODES#N}, this
|
||||
* will not affect the decode, though it will still set mCancel.
|
||||
*
|
||||
* In {@link android.os.Build.VERSION_CODES#M} and below, if this can
|
||||
* be called from another thread while this options object is inside
|
||||
* a decode... call. Calling this will notify the decoder that it
|
||||
* should cancel its operation. This is not guaranteed to cancel the
|
||||
* decode, but if it does, the decoder... operation will return null,
|
||||
* or if inJustDecodeBounds is true, will set outWidth/outHeight
|
||||
* to -1
|
||||
*/
|
||||
@Deprecated
|
||||
public void requestCancelDecode() {
|
||||
mCancel = true;
|
||||
}
|
||||
|
||||
static void validate(Options opts) {
|
||||
if (opts == null) return;
|
||||
|
||||
if (opts.inBitmap != null) {
|
||||
/*
|
||||
if (opts.inBitmap.getConfig() == Bitmap.Config.HARDWARE) {
|
||||
throw new IllegalArgumentException(
|
||||
"Bitmaps with Config.HARDWARE are always immutable");
|
||||
}
|
||||
if (opts.inBitmap.isRecycled()) {
|
||||
throw new IllegalArgumentException(
|
||||
"Cannot reuse a recycled Bitmap");
|
||||
}
|
||||
*/
|
||||
}
|
||||
|
||||
if (opts.inMutable && opts.inPreferredConfig == Bitmap.Config.HARDWARE) {
|
||||
throw new IllegalArgumentException("Bitmaps with Config.HARDWARE cannot be " +
|
||||
"decoded into - they are immutable");
|
||||
}
|
||||
|
||||
if (opts.inPreferredColorSpace != null) {
|
||||
if (!(opts.inPreferredColorSpace instanceof ColorSpace.Rgb)) {
|
||||
throw new IllegalArgumentException("The destination color space must use the " +
|
||||
"RGB color model");
|
||||
}
|
||||
if (!opts.inPreferredColorSpace.equals(ColorSpace.get(ColorSpace.Named.BT2020_HLG))
|
||||
&& !opts.inPreferredColorSpace.equals(
|
||||
ColorSpace.get(ColorSpace.Named.BT2020_PQ))
|
||||
&& ((ColorSpace.Rgb) opts.inPreferredColorSpace)
|
||||
.getTransferParameters() == null) {
|
||||
throw new IllegalArgumentException("The destination color space must use an " +
|
||||
"ICC parametric transfer function");
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
public static Bitmap decodeStream(InputStream inputStream) {
|
||||
return decodeStream(inputStream, null, null);
|
||||
}
|
||||
|
||||
@Nullable
|
||||
public static Bitmap decodeStream(@Nullable InputStream is, @Nullable Rect outPadding,
|
||||
@Nullable Options opts) {
|
||||
if (is == null) return null;
|
||||
if (outPadding != null) throw new RuntimeException("OutPadding is not implemented");
|
||||
Options.validate(opts);
|
||||
Bitmap bitmap = null;
|
||||
// TODO: Support options with in parameters
|
||||
|
||||
try {
|
||||
ImageInputStream imageInputStream = ImageIO.createImageInputStream(inputStream);
|
||||
ImageInputStream imageInputStream = ImageIO.createImageInputStream(is);
|
||||
Iterator<ImageReader> imageReaders = ImageIO.getImageReaders(imageInputStream);
|
||||
|
||||
if (!imageReaders.hasNext()) {
|
||||
@@ -24,8 +473,18 @@ public class BitmapFactory {
|
||||
ImageReader imageReader = imageReaders.next();
|
||||
imageReader.setInput(imageInputStream);
|
||||
|
||||
BufferedImage image = imageReader.read(0, imageReader.getDefaultReadParam());
|
||||
bitmap = new Bitmap(image);
|
||||
if (opts != null) {
|
||||
opts.outHeight = imageReader.getHeight(0);
|
||||
opts.outWidth = imageReader.getWidth(0);
|
||||
opts.outMimeType = imageReader.getOriginatingProvider().getMIMETypes()[0];
|
||||
opts.outColorSpace = null; // TODO: support? see imageReader.getImageTypeSpecifier().getColorSpace()
|
||||
opts.outConfig = null; // TODO: support?
|
||||
}
|
||||
|
||||
if (opts == null || !opts.inJustDecodeBounds) {
|
||||
BufferedImage image = imageReader.read(0, imageReader.getDefaultReadParam());
|
||||
bitmap = new Bitmap(image);
|
||||
}
|
||||
|
||||
imageReader.dispose();
|
||||
} catch (IOException ex) {
|
||||
@@ -36,16 +495,11 @@ public class BitmapFactory {
|
||||
}
|
||||
|
||||
public static Bitmap decodeByteArray(byte[] data, int offset, int length) {
|
||||
Bitmap bitmap = null;
|
||||
return decodeByteArray(data, offset, length, null);
|
||||
}
|
||||
|
||||
ByteArrayInputStream byteArrayStream = new ByteArrayInputStream(data);
|
||||
try {
|
||||
BufferedImage image = ImageIO.read(byteArrayStream);
|
||||
bitmap = new Bitmap(image);
|
||||
} catch (IOException ex) {
|
||||
throw new RuntimeException(ex);
|
||||
}
|
||||
|
||||
return bitmap;
|
||||
public static Bitmap decodeByteArray(byte[] data, int offset, int length, Options opts) {
|
||||
ByteArrayInputStream byteArrayStream = new ByteArrayInputStream(data, offset, length);
|
||||
return decodeStream(byteArrayStream, null, opts);
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user