org.webrtc.ali

Class GlRectDrawer

java.lang.Object

org.webrtc.ali.GlRectDrawer

All Implemented Interfaces:

RendererCommon.GlDrawer

public class GlRectDrawer
extends java.lang.Object
implements RendererCommon.GlDrawer

Helper class to draw an opaque quad on the target viewport location. Rotation, mirror, and cropping is specified using a 4x4 texture coordinate transform matrix. The frame input can either be an OES texture or YUV textures in I420 format. The GL state must be preserved between draw calls, this is intentional to maximize performance. The function release() must be called manually to free the resources held by this object.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GlRectDrawer.TextureType

Constructor Summary

Constructors

Constructor and Description
GlRectDrawer()

Method Summary

Modifier and Type	Method and Description
void	drawOes(int oesTextureId, float[] texMatrix, int frameWidth, int frameHeight, int viewportX, int viewportY, int viewportWidth, int viewportHeight) Draw an OES texture frame with specified texture transformation matrix.
void	drawRgb(int textureId, float[] texMatrix, int frameWidth, int frameHeight, int viewportX, int viewportY, int viewportWidth, int viewportHeight) Draw a RGB(A) texture frame with specified texture transformation matrix.
void	drawYuv(int[] yuvTextures, float[] texMatrix, int frameWidth, int frameHeight, int viewportX, int viewportY, int viewportWidth, int viewportHeight) Draw a YUV frame with specified texture transformation matrix.
void	readBuffer(int textureId, float[] texMatrix, int frameWidth, int frameHeight, int viewportX, int viewportY, int viewportWidth, int viewportHeight)
void	readBufferOffScreen(int textureId, float[] texMatrix, int frameWidth, int frameHeight, int viewportX, int viewportY, int viewportWidth, int viewportHeight)
void	release() Release all GLES resources.

Methods inherited from class java.lang.Object

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

Constructor Detail

GlRectDrawer

public GlRectDrawer()

Method Detail

drawOes

public void drawOes(int oesTextureId,
                    float[] texMatrix,
                    int frameWidth,
                    int frameHeight,
                    int viewportX,
                    int viewportY,
                    int viewportWidth,
                    int viewportHeight)

Draw an OES texture frame with specified texture transformation matrix. Required resources are allocated at the first call to this function.

Specified by:

drawOes in interface RendererCommon.GlDrawer

drawRgb

public void drawRgb(int textureId,
                    float[] texMatrix,
                    int frameWidth,
                    int frameHeight,
                    int viewportX,
                    int viewportY,
                    int viewportWidth,
                    int viewportHeight)

Draw a RGB(A) texture frame with specified texture transformation matrix. Required resources are allocated at the first call to this function.

Specified by:

drawRgb in interface RendererCommon.GlDrawer

drawYuv

public void drawYuv(int[] yuvTextures,
                    float[] texMatrix,
                    int frameWidth,
                    int frameHeight,
                    int viewportX,
                    int viewportY,
                    int viewportWidth,
                    int viewportHeight)

Draw a YUV frame with specified texture transformation matrix. Required resources are allocated at the first call to this function.

Specified by:

drawYuv in interface RendererCommon.GlDrawer

readBuffer

public void readBuffer(int textureId,
                       float[] texMatrix,
                       int frameWidth,
                       int frameHeight,
                       int viewportX,
                       int viewportY,
                       int viewportWidth,
                       int viewportHeight)

readBufferOffScreen

public void readBufferOffScreen(int textureId,
                                float[] texMatrix,
                                int frameWidth,
                                int frameHeight,
                                int viewportX,
                                int viewportY,
                                int viewportWidth,
                                int viewportHeight)

release

public void release()

Release all GLES resources. This needs to be done manually, otherwise the resources are leaked.

Specified by:

release in interface RendererCommon.GlDrawer