# HardwareBufferJni

Artifact: [androidx.media3:media3-effect](https://developer.android.com/jetpack/androidx/releases/media3) [View Source](https://cs.android.com/search?q=file:androidx/media3/effect/HardwareBufferJni.java+class:androidx.media3.effect.HardwareBufferJni)

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```
@RequiresApi(value = 26)
@ExperimentalApi
public final class HardwareBufferJni implements HardwareBufferJniWrapper
```

<br />

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JNI methods for HardwareBuffer interaction.

## Summary

| ### Constants |
|---|---|
| `static final https://developer.android.com/reference/androidx/media3/effect/HardwareBufferJni` | `https://developer.android.com/reference/androidx/media3/effect/HardwareBufferJni#INSTANCE()` |

| ### Public methods |
|---|---|
| `native boolean` | `https://developer.android.com/reference/androidx/media3/effect/HardwareBufferJni#nativeBindEGLImage(int,long)(int target, long eglImageHandle)` Binds an EGLImage to the specified texture target. |
| `native boolean` | `https://developer.android.com/reference/androidx/media3/effect/HardwareBufferJni#nativeCopyBitmapToHardwareBuffer(android.graphics.Bitmap,android.hardware.HardwareBuffer)(https://developer.android.com/reference/android/graphics/Bitmap.html bitmap, https://developer.android.com/reference/android/hardware/HardwareBuffer.html hb)` Copies a `https://developer.android.com/reference/android/graphics/Bitmap.html` to a `https://developer.android.com/reference/android/hardware/HardwareBuffer.html`. |
| `native boolean` | `https://developer.android.com/reference/androidx/media3/effect/HardwareBufferJni#nativeCopyHardwareBufferToHardwareBuffer(android.hardware.HardwareBuffer,android.hardware.HardwareBuffer)( https://developer.android.com/reference/android/hardware/HardwareBuffer.html srcHb, https://developer.android.com/reference/android/hardware/HardwareBuffer.html dstHb )` Copies the contents of a source `https://developer.android.com/reference/android/hardware/HardwareBuffer.html` to a destination `https://developer.android.com/reference/android/hardware/HardwareBuffer.html`. |
| `native long` | `https://developer.android.com/reference/androidx/media3/effect/HardwareBufferJni#nativeCreateEglImageFromHardwareBuffer(long,android.hardware.HardwareBuffer)( long displayHandle, https://developer.android.com/reference/android/hardware/HardwareBuffer.html hardwareBuffer )` Creates an EGLImage from a `https://developer.android.com/reference/android/hardware/HardwareBuffer.html`. |
| `native boolean` | `https://developer.android.com/reference/androidx/media3/effect/HardwareBufferJni#nativeDestroyEGLImage(long,long)(long displayHandle, long imageHandle)` Destroys an EGLImage. |

### Inherited methods

From [androidx.media3.common.video.HardwareBufferNativeHelpers](https://developer.android.com/reference/androidx/media3/common/video/HardwareBufferNativeHelpers) `abstract boolean` `@https://developer.android.com/reference/androidx/annotation/RequiresApi(value = 26)
https://developer.android.com/reference/androidx/media3/common/video/HardwareBufferNativeHelpers#nativeCopyHardwareBufferToHardwareBuffer(android.hardware.HardwareBuffer,android.hardware.HardwareBuffer)(
https://developer.android.com/reference/android/hardware/HardwareBuffer.html srcHb,
https://developer.android.com/reference/android/hardware/HardwareBuffer.html dstHb
)`

Copies the contents of a source `https://developer.android.com/reference/android/hardware/HardwareBuffer.html` to a destination `https://developer.android.com/reference/android/hardware/HardwareBuffer.html`.

## Constants

### INSTANCE

```
public static final HardwareBufferJni INSTANCE
```

## Public methods

### nativeBindEGLImage

```
native public boolean nativeBindEGLImage(int target, long eglImageHandle)
```

Binds an EGLImage to the specified texture target. Returns whether the binding is successful.

### nativeCopyBitmapToHardwareBuffer

```
native public boolean nativeCopyBitmapToHardwareBuffer(Bitmap bitmap, HardwareBuffer hb)
```

Copies a `https://developer.android.com/reference/android/graphics/Bitmap.html` to a `https://developer.android.com/reference/android/hardware/HardwareBuffer.html`. Returns whether the copy is successful.

The destination `https://developer.android.com/reference/android/hardware/HardwareBuffer.html` must have `https://developer.android.com/reference/android/hardware/HardwareBuffer.html#USAGE_CPU_WRITE_OFTEN` usage.

The source `https://developer.android.com/reference/android/graphics/Bitmap.Config.html` must match the destination `https://developer.android.com/reference/android/hardware/HardwareBuffer.html#getFormat()`, and be either `https://developer.android.com/reference/android/graphics/Bitmap.Config.html#ARGB_8888` and `https://developer.android.com/reference/android/hardware/HardwareBuffer.html#RGBA_8888` or `https://developer.android.com/reference/android/graphics/Bitmap.Config.html#RGBA_1010102` and `https://developer.android.com/reference/android/hardware/HardwareBuffer.html#RGBA_1010102`.

### nativeCopyHardwareBufferToHardwareBuffer

```
native public boolean nativeCopyHardwareBufferToHardwareBuffer(
    HardwareBuffer srcHb,
    HardwareBuffer dstHb
)
```

Copies the contents of a source `https://developer.android.com/reference/android/hardware/HardwareBuffer.html` to a destination `https://developer.android.com/reference/android/hardware/HardwareBuffer.html`. Returns whether the copy is successful.

The source `https://developer.android.com/reference/android/hardware/HardwareBuffer.html` must have `https://developer.android.com/reference/android/hardware/HardwareBuffer.html#USAGE_CPU_READ_OFTEN` usage, and the destination `https://developer.android.com/reference/android/hardware/HardwareBuffer.html` must have `https://developer.android.com/reference/android/hardware/HardwareBuffer.html#USAGE_CPU_WRITE_OFTEN` usage.

The formats of the source and destination buffers must match, and be either `https://developer.android.com/reference/android/hardware/HardwareBuffer.html#RGBA_8888` or `https://developer.android.com/reference/android/hardware/HardwareBuffer.html#RGBA_1010102`.

### nativeCreateEglImageFromHardwareBuffer

```
native public long nativeCreateEglImageFromHardwareBuffer(
    long displayHandle,
    HardwareBuffer hardwareBuffer
)
```

Creates an EGLImage from a `https://developer.android.com/reference/android/hardware/HardwareBuffer.html`.

### nativeDestroyEGLImage

```
native public boolean nativeDestroyEGLImage(long displayHandle, long imageHandle)
```

Destroys an EGLImage. Returns whether the deletion is successful.