com.android.grafika.gles

Class FullFrameRect

java.lang.Object

com.android.grafika.gles.FullFrameRect

public class FullFrameRect
extends Object

This class essentially represents a viewport-sized sprite that will be rendered with a texture, usually from an external source like the camera or video decoder.

Constructor Summary

Constructors

Constructor and Description
FullFrameRect(Texture2dProgram program) Prepares the object.

Method Summary

Modifier and Type	Method and Description
void	changeProgram(Texture2dProgram program) Changes the program.
int	createTextureObject() Creates a texture object suitable for use with drawFrame().
void	drawFrame(int textureId, float[] texMatrix) Draws a viewport-filling rect, texturing it with the specified texture object.
Texture2dProgram	getProgram() Returns the program currently in use.
void	release(boolean doEglCleanup) Releases resources.

Methods inherited from class java.lang.Object

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

Constructor Detail

FullFrameRect

public FullFrameRect(Texture2dProgram program)

Prepares the object.

Parameters:

program - The program to use. FullFrameRect takes ownership, and will release the program when no longer needed.

Method Detail

release

public void release(boolean doEglCleanup)

Releases resources.

This must be called with the appropriate EGL context current (i.e. the one that was current when the constructor was called). If we're about to destroy the EGL context, there's no value in having the caller make it current just to do this cleanup, so you can pass a flag that will tell this function to skip any EGL-context-specific cleanup.

getProgram

public Texture2dProgram getProgram()

Returns the program currently in use.

changeProgram

public void changeProgram(Texture2dProgram program)

Changes the program. The previous program will be released.

The appropriate EGL context must be current.

createTextureObject

public int createTextureObject()

Creates a texture object suitable for use with drawFrame().

drawFrame

public void drawFrame(int textureId,
                      float[] texMatrix)

Draws a viewport-filling rect, texturing it with the specified texture object.