# HardwareBufferJniWrapper

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/HardwareBufferJniWrapper.kt+class:androidx.media3.effect.HardwareBufferJniWrapper)

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```
@RequiresApi(value = 26)
@ExperimentalApi
interface HardwareBufferJniWrapper : HardwareBufferNativeHelpers
```

<br />

Known direct subclasses [HardwareBufferJni](https://developer.android.com/reference/kotlin/androidx/media3/effect/HardwareBufferJni)

|---|---|
| `https://developer.android.com/reference/kotlin/androidx/media3/effect/HardwareBufferJni` | JNI methods for HardwareBuffer interaction. |

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Wrapper for `https://developer.android.com/reference/android/hardware/HardwareBuffer.html` JNI methods.

## Summary

| ### Public functions |
|---|---|
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/effect/HardwareBufferJniWrapper#nativeBindEGLImage(kotlin.Int,kotlin.Long)(target: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-int/index.html, eglImageHandle: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html)` Binds an EGLImage to the specified texture target. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/effect/HardwareBufferJniWrapper#nativeCopyBitmapToHardwareBuffer(android.graphics.Bitmap,android.hardware.HardwareBuffer)(bitmap: https://developer.android.com/reference/android/graphics/Bitmap.html, hb: https://developer.android.com/reference/android/hardware/HardwareBuffer.html)` Copies a `https://developer.android.com/reference/android/graphics/Bitmap.html` to a `https://developer.android.com/reference/android/hardware/HardwareBuffer.html`. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/effect/HardwareBufferJniWrapper#nativeCopyHardwareBufferToHardwareBuffer(android.hardware.HardwareBuffer,android.hardware.HardwareBuffer)( srcHb: https://developer.android.com/reference/android/hardware/HardwareBuffer.html, dstHb: https://developer.android.com/reference/android/hardware/HardwareBuffer.html )` 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`. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/effect/HardwareBufferJniWrapper#nativeCreateEglImageFromHardwareBuffer(kotlin.Long,android.hardware.HardwareBuffer)( displayHandle: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html, hardwareBuffer: https://developer.android.com/reference/android/hardware/HardwareBuffer.html )` Creates an EGLImage from a `https://developer.android.com/reference/android/hardware/HardwareBuffer.html`. |
| `https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-boolean/index.html` | `https://developer.android.com/reference/kotlin/androidx/media3/effect/HardwareBufferJniWrapper#nativeDestroyEGLImage(kotlin.Long,kotlin.Long)(displayHandle: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html, imageHandle: https://kotlinlang.org/api/core/kotlin-stdlib/kotlin/-long/index.html)` Destroys an EGLImage. |

## Public functions

### nativeBindEGLImage

```
fun nativeBindEGLImage(target: Int, eglImageHandle: Long): Boolean
```

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

### nativeCopyBitmapToHardwareBuffer

```
fun nativeCopyBitmapToHardwareBuffer(bitmap: Bitmap, hb: HardwareBuffer): Boolean
```

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

```
fun nativeCopyHardwareBufferToHardwareBuffer(
    srcHb: HardwareBuffer,
    dstHb: HardwareBuffer
): Boolean
```

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

```
fun nativeCreateEglImageFromHardwareBuffer(
    displayHandle: Long,
    hardwareBuffer: HardwareBuffer
): Long
```

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

### nativeDestroyEGLImage

```
fun nativeDestroyEGLImage(displayHandle: Long, imageHandle: Long): Boolean
```

Destroys an EGLImage. Returns whether the deletion is successful.