Package tvi.webrtc

Class GlTextureFrameBuffer

java.lang.Object

tvi.webrtc.GlTextureFrameBuffer

public class GlTextureFrameBuffer
extends Object

Helper class for handling OpenGL framebuffer with only color attachment and no depth or stencil buffer. Intended for simple tasks such as texture copy, texture downscaling, and texture color conversion. This class is not thread safe and must be used by a thread with an active GL context.

Constructor Summary

Constructors

Constructor	Description
GlTextureFrameBuffer(int pixelFormat)	Generate texture and framebuffer resources.

Method Summary

Modifier and Type	Method	Description
int	getFrameBufferId()	Gets the OpenGL frame buffer id.
int	getHeight()
int	getTextureId()	Gets the OpenGL texture id.
int	getWidth()
void	release()	Release texture and framebuffer.
void	setSize(int width, int height)	(Re)allocate texture.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

GlTextureFrameBuffer

public GlTextureFrameBuffer(int pixelFormat)

Generate texture and framebuffer resources. An EGLContext must be bound on the current thread when calling this function. The framebuffer is not complete until setSize() is called.

Method Details

setSize

public void setSize(int width,
 int height)

(Re)allocate texture. Will do nothing if the requested size equals the current size. An EGLContext must be bound on the current thread when calling this function. Must be called at least once before using the framebuffer. May be called multiple times to change size.

getWidth

public int getWidth()

getHeight

public int getHeight()

getFrameBufferId

public int getFrameBufferId()

Gets the OpenGL frame buffer id. This value is only valid after setSize() has been called.

getTextureId

public int getTextureId()

Gets the OpenGL texture id. This value is only valid after setSize() has been called.

release

public void release()

Release texture and framebuffer. An EGLContext must be bound on the current thread when calling this function. This object should not be used after this call.