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BitmapFactory: Support basic options (#1853)

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* 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
2026-01-11 22:47:52 +01:00
committed by GitHub
parent b35c120bd1
commit b979db9acb
2 changed files with 543 additions and 14 deletions
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77
AndroidCompat/src/main/java/android/graphics/Bitmap.java
View File

@@ -2,6 +2,8 @@ package android.graphics;
import android.annotation.ColorInt;
import android.annotation.NonNull;
import android.annotation.Nullable;
import android.util.Log;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.IOException;
@@ -58,7 +60,23 @@ public final class Bitmap {
ARGB_8888(5),
RGBA_F16(6),
HARDWARE(7),
RGBA_1010102(8);
RGBA_1010102(8),
_TYPE_3BYTE_BGR(BufferedImage.TYPE_3BYTE_BGR),
_TYPE_4BYTE_ABGR(BufferedImage.TYPE_4BYTE_ABGR),
_TYPE_4BYTE_ABGR_PRE(BufferedImage.TYPE_4BYTE_ABGR_PRE),
_TYPE_BYTE_BINARY(BufferedImage.TYPE_BYTE_BINARY),
_TYPE_BYTE_GRAY(BufferedImage.TYPE_BYTE_GRAY),
_TYPE_BYTE_INDEXED(BufferedImage.TYPE_BYTE_INDEXED),
_TYPE_CUSTOM(BufferedImage.TYPE_CUSTOM),
_TYPE_INT_ARGB(BufferedImage.TYPE_INT_ARGB),
_TYPE_INT_ARGB_PRE(BufferedImage.TYPE_INT_ARGB_PRE),
_TYPE_INT_BGR(BufferedImage.TYPE_INT_BGR),
_TYPE_INT_RGB(BufferedImage.TYPE_INT_RGB),
_TYPE_USHORT_555_RGB(BufferedImage.TYPE_USHORT_555_RGB),
_TYPE_USHORT_565_RGB(BufferedImage.TYPE_USHORT_565_RGB),
_TYPE_USHORT_GRAY(BufferedImage.TYPE_USHORT_GRAY),
;
final int nativeInt;
@@ -83,11 +101,62 @@ public final class Bitmap {
return BufferedImage.TYPE_USHORT_565_RGB;
case ARGB_8888:
return BufferedImage.TYPE_INT_ARGB;
case _TYPE_3BYTE_BGR:
case _TYPE_4BYTE_ABGR:
case _TYPE_4BYTE_ABGR_PRE:
case _TYPE_BYTE_BINARY:
case _TYPE_BYTE_GRAY:
case _TYPE_BYTE_INDEXED:
case _TYPE_CUSTOM:
case _TYPE_INT_ARGB:
case _TYPE_INT_ARGB_PRE:
case _TYPE_INT_BGR:
case _TYPE_INT_RGB:
case _TYPE_USHORT_555_RGB:
case _TYPE_USHORT_565_RGB:
case _TYPE_USHORT_GRAY:
return config.ordinal();
default:
throw new UnsupportedOperationException("Bitmap.Config(" + config + ") not supported");
}
}
private static Config bufferedImageTypeToConfig(int type) {
switch (type) {
case BufferedImage.TYPE_BYTE_GRAY:
return Config.ALPHA_8;
case BufferedImage.TYPE_USHORT_565_RGB:
return Config.RGB_565;
case BufferedImage.TYPE_INT_ARGB:
return Config.ARGB_8888;
case BufferedImage.TYPE_3BYTE_BGR:
return Config._TYPE_3BYTE_BGR;
case BufferedImage.TYPE_4BYTE_ABGR:
return Config._TYPE_4BYTE_ABGR;
case BufferedImage.TYPE_4BYTE_ABGR_PRE:
return Config._TYPE_4BYTE_ABGR_PRE;
case BufferedImage.TYPE_BYTE_BINARY:
return Config._TYPE_BYTE_BINARY;
case BufferedImage.TYPE_BYTE_INDEXED:
return Config._TYPE_BYTE_INDEXED;
case BufferedImage.TYPE_CUSTOM:
return Config._TYPE_CUSTOM;
case BufferedImage.TYPE_INT_ARGB_PRE:
return Config._TYPE_INT_ARGB_PRE;
case BufferedImage.TYPE_INT_BGR:
return Config._TYPE_INT_BGR;
case BufferedImage.TYPE_INT_RGB:
return Config._TYPE_INT_RGB;
case BufferedImage.TYPE_USHORT_555_RGB:
return Config._TYPE_USHORT_555_RGB;
case BufferedImage.TYPE_USHORT_GRAY:
return Config._TYPE_USHORT_GRAY;
default:
Log.w("Bitmap", "Encountered unsupported image type " + type);
return null;
}
}
/**
* Common code for checking that x and y are >= 0
*
@@ -264,4 +333,10 @@ public final class Bitmap {
public void recycle() {
// do nothing
}
@Nullable
public final Config getConfig() {
int type = image.getType();
return bufferedImageTypeToConfig(type);
}
}