Class EglSurfaceBase

mEglCore

protected com.android.grafika.gles.EglCore mEglCore

EglSurfaceBase( EglCore eglCore )

protected EglSurfaceBase(EglCore eglCore)

Constructor Parameters

eglCore

createWindowSurface( Object surface )

Creates a window surface.

public void createWindowSurface(Object surface)

Method Parameters

surface

May be a Surface or SurfaceTexture.

createOffscreenSurface( int width, int height )

Creates an off-screen surface.

public void createOffscreenSurface(int width,int height)

Method Parameters

width

height

getWidth()

Returns the surface's width, in pixels.

If this is called on a window surface, and the underlying surface is in the process of changing size, we may not see the new size right away (e.g. in the "surfaceChanged" callback). The size should match after the next buffer swap.

public int getWidth()

getHeight()

Returns the surface's height, in pixels.

public int getHeight()

releaseEglSurface()

Release the EGL surface.

public void releaseEglSurface()

makeCurrent()

Makes our EGL context and surface current.

public void makeCurrent()

makeCurrentReadFrom( EglSurfaceBase readSurface )

Makes our EGL context and surface current for drawing, using the supplied surface for reading.

public void makeCurrentReadFrom(EglSurfaceBase readSurface)

Method Parameters

readSurface

swapBuffers()

Calls eglSwapBuffers. Use this to "publish" the current frame.

public boolean swapBuffers()

setPresentationTime( long nsecs )

Sends the presentation time stamp to EGL.

public void setPresentationTime(long nsecs)

Method Parameters

nsecs

Timestamp, in nanoseconds.

saveFrame( File file )

Saves the EGL surface to a file.

Expects that this object's EGL surface is current.

public void saveFrame(File file) throws java.io.IOException

Method Parameters

file

Throws

• java.io.IOException