com.serenegiant.glutils

Class Texture2dProgram

java.lang.Object

com.serenegiant.glutils.Texture2dProgram

public class Texture2dProgram
extends java.lang.Object

GL program and supporting functions for textured 2D shapes.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Texture2dProgram.ProgramType

Field Summary

Fields

Modifier and Type	Field and Description
protected boolean	mHasKernel2

Constructor Summary

Constructors

Modifier	Constructor and Description
	Texture2dProgram(int target, java.lang.String fss)
	Texture2dProgram(int target, java.lang.String vss, java.lang.String fss)
	Texture2dProgram(Texture2dProgram.ProgramType programType)
protected	Texture2dProgram(Texture2dProgram.ProgramType programType, int target, java.lang.String vss, java.lang.String fss) Prepares the program in the current EGL context.

Method Summary

Modifier and Type	Method and Description
int	createTextureObject() Creates a texture object suitable for use with this program.
void	draw(float[] mvpMatrix, int mvpMatrixOffset, java.nio.FloatBuffer vertexBuffer, int firstVertex, int vertexCount, int coordsPerVertex, int vertexStride, float[] texMatrix, int texMatrixOffset, java.nio.FloatBuffer texBuffer, int textureId, int texStride) Issues the draw call.
int	getProgramHandle()
Texture2dProgram.ProgramType	getProgramType() Returns the program type.
void	handleTouchEvent(android.view.MotionEvent ev) Configures the effect offset This only has an effect for programs that use positional effects like SQUEEZE and MIRROR
protected void	initLocation(float[] kernel, float[] kernel2)
protected void	internal_draw(int firstVertex, int vertexCount)
void	release() Releases the program.
void	setColorAdjust(float adjust)
void	setFlag(int index, int value)
void	setFlags(int[] flags)
void	setKernel(float[] values, float colorAdj) Configures the convolution filter values.
void	setKernel2(float[] values)
void	setTexSize(int width, int height) Sets the size of the texture.

Methods inherited from class java.lang.Object

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

Field Detail

mHasKernel2

protected boolean mHasKernel2

Constructor Detail

Texture2dProgram

public Texture2dProgram(int target,
                        java.lang.String fss)

Texture2dProgram

public Texture2dProgram(int target,
                        java.lang.String vss,
                        java.lang.String fss)

Texture2dProgram

public Texture2dProgram(Texture2dProgram.ProgramType programType)

Texture2dProgram

protected Texture2dProgram(Texture2dProgram.ProgramType programType,
                           int target,
                           java.lang.String vss,
                           java.lang.String fss)

Prepares the program in the current EGL context.

Method Detail

release

public void release()

Releases the program.

getProgramType

public Texture2dProgram.ProgramType getProgramType()

Returns the program type.

getProgramHandle

public int getProgramHandle()

createTextureObject

public int createTextureObject()

Creates a texture object suitable for use with this program.

On exit, the texture will be bound.

handleTouchEvent

public void handleTouchEvent(android.view.MotionEvent ev)

Configures the effect offset This only has an effect for programs that use positional effects like SQUEEZE and MIRROR

setKernel

public void setKernel(float[] values,
                      float colorAdj)

Configures the convolution filter values. This only has an effect for programs that use the FRAGMENT_SHADER_EXT_FILT3x3 Fragment shader.

Parameters:

values - Normalized filter values; must be KERNEL_SIZE3x3 elements.

setKernel2

public void setKernel2(float[] values)

setColorAdjust

public void setColorAdjust(float adjust)

setTexSize

public void setTexSize(int width,
                       int height)

Sets the size of the texture. This is used to find adjacent texels when filtering.

setFlags

public void setFlags(int[] flags)

setFlag

public void setFlag(int index,
                    int value)

draw

public void draw(float[] mvpMatrix,
                 int mvpMatrixOffset,
                 java.nio.FloatBuffer vertexBuffer,
                 int firstVertex,
                 int vertexCount,
                 int coordsPerVertex,
                 int vertexStride,
                 float[] texMatrix,
                 int texMatrixOffset,
                 java.nio.FloatBuffer texBuffer,
                 int textureId,
                 int texStride)

Issues the draw call. Does the full setup on every call.

Parameters:

mvpMatrix - The 4x4 projection matrix.

mvpMatrixOffset - offset of mvpMatrix

vertexBuffer - Buffer with vertex position data.

firstVertex - Index of first vertex to use in vertexBuffer.

vertexCount - Number of vertices in vertexBuffer.

coordsPerVertex - The number of coordinates per vertex (e.g. x,y is 2).

vertexStride - Width, in bytes, of the position data for each vertex (often vertexCount * sizeof(float)).

texMatrix - A 4x4 transformation matrix for texture coords.

texMatrixOffset - offset of texMatrix

texBuffer - Buffer with vertex texture data.

texStride - Width, in bytes, of the texture data for each vertex.

initLocation

protected void initLocation(float[] kernel,
                            float[] kernel2)

internal_draw

protected void internal_draw(int firstVertex,
                             int vertexCount)