DefaultGlObjectsProvider

@UnstableApi
class DefaultGlObjectsProvider : GlObjectsProvider

Implementation of GlObjectsProvider that configures an EGLContext to share data with a preexisting sharedEglContext.

The created EGLContext is configured with 8-bit RGB or 10-bit RGB attributes and no depth buffer or render buffers.

Summary

Public constructors

Creates an instance with no shared EGL context.

Creates an instance with the specified shared EGL context.

Public functions
GlTextureInfo!
createBuffersForTexture(texId: Int, width: Int, height: Int)

Returns a GlTextureInfo containing the identifiers of the newly created buffers.
EGLContext!
createEglContext(
    eglDisplay: EGLDisplay!,
    openGlVersion: Int,
    configAttributes: IntArray!
)

Creates a new EGLContext for the specified EGLDisplay.
EGLSurface!
createEglSurface(
    eglDisplay: EGLDisplay!,
    surface: Any!,
    @C.ColorTransfer colorTransfer: Int,
    isEncoderInputSurface: Boolean
)

Creates a new EGLSurface wrapping the specified surface.
EGLSurface!
createFocusedPlaceholderEglSurface(
    eglContext: EGLContext!,
    eglDisplay: EGLDisplay!
)

Creates and focuses a placeholder EGLSurface.

Public constructors

DefaultGlObjectsProvider

DefaultGlObjectsProvider()

Creates an instance with no shared EGL context.

DefaultGlObjectsProvider

DefaultGlObjectsProvider(sharedEglContext: EGLContext?)

Creates an instance with the specified shared EGL context.

Parameters
sharedEglContext: EGLContext?

The context with which to share data, or null if none.

Public functions

createBuffersForTexture

fun createBuffersForTexture(texId: Int, width: Int, height: Int): GlTextureInfo!

Returns a GlTextureInfo containing the identifiers of the newly created buffers.

Parameters
texId: Int

The identifier of the texture to attach to the buffers.
width: Int

The width of the texture in pixels.
height: Int

The height of the texture in pixels.
Throws
androidx.media3.common.util.GlUtil.GlException

If an error occurs during creation.

createEglContext

fun createEglContext(
    eglDisplay: EGLDisplay!,
    openGlVersion: Int,
    configAttributes: IntArray!
): EGLContext!

Creates a new EGLContext for the specified EGLDisplay.

Parameters
eglDisplay: EGLDisplay!

The EGLDisplay to create an EGLContext for.
openGlVersion: Int

The version of OpenGL ES to configure. Accepts either 2, for OpenGL ES 2.0, or 3, for OpenGL ES 3.0.
configAttributes: IntArray!

The attributes to configure EGL with.
Throws
androidx.media3.common.util.GlUtil.GlException

If an error occurs during creation.

createEglSurface

fun createEglSurface(
    eglDisplay: EGLDisplay!,
    surface: Any!,
    @C.ColorTransfer colorTransfer: Int,
    isEncoderInputSurface: Boolean
): EGLSurface!

Creates a new EGLSurface wrapping the specified surface.

Parameters
eglDisplay: EGLDisplay!

The EGLDisplay to attach the surface to.
surface: Any!

The surface to wrap; must be a surface, surface texture or surface holder.
@C.ColorTransfer colorTransfer: Int

The color transfer characteristics to which the surface is configured.
isEncoderInputSurface: Boolean

Whether the surface is the input surface of an encoder.
Throws
androidx.media3.common.util.GlUtil.GlException

If an error occurs during creation.

createFocusedPlaceholderEglSurface

fun createFocusedPlaceholderEglSurface(
    eglContext: EGLContext!,
    eglDisplay: EGLDisplay!
): EGLSurface!

Creates and focuses a placeholder EGLSurface.

Parameters
eglContext: EGLContext!

The EGLContext to make current.
eglDisplay: EGLDisplay!

The EGLDisplay to attach the surface to.
Returns
EGLSurface!

A placeholder EGLSurface that has been focused to allow rendering to take place, or EGL_NO_SURFACE if the current context supports rendering without a surface.
Throws
androidx.media3.common.util.GlUtil.GlException

If an error occurs during creation.