com.yy.mediaframework.gles

Class Drawable2d

java.lang.Object

com.yy.mediaframework.gles.Drawable2d

public class Drawable2d
extends java.lang.Object

Base class for stuff we like to draw.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Drawable2d.Prefab Enum values for constructor.

Field Summary

Fields

Modifier and Type	Field and Description
static java.nio.FloatBuffer	FULL_RECTANGLE_BUF
static float[]	FULL_RECTANGLE_COORDS A "full" square, extending from -1 to +1 in both dimensions.
static java.nio.FloatBuffer	FULL_RECTANGLE_TEX_BUF
static float[]	FULL_RECTANGLE_TEX_COORDS
static float[]	FULL_RECTANGLE_TEX_COORDS_FLIP_HORIZONTAL
static float[]	FULL_RECTANGLE_TEX_COORDS_FLIP_VERTICAL
static java.nio.FloatBuffer	FULL_RECTANGLE_TEX_HORIZONTAL_FLIP_BUF
static java.nio.FloatBuffer	FULL_RECTANGLE_TEX_VERTICAL_FLIP_BUF

Constructor Summary

Constructors

Constructor and Description
Drawable2d()
Drawable2d(Drawable2d.Prefab shape) Prepares a drawable from a "pre-fabricated" shape definition.

Method Summary

Modifier and Type	Method and Description
int	getCoordsPerVertex() Returns the number of position coordinates per vertex.
java.nio.FloatBuffer	getTexCoordArray() Returns the array of texture coordinates.
int	getTexCoordStride() Returns the width, in bytes, of the data for each texture coordinate.
java.nio.FloatBuffer	getVertexArray() Returns the array of vertices.
int	getVertexCount() Returns the number of vertices stored in the vertex array.
int	getVertexStride() Returns the width, in bytes, of the data for each vertex.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

FULL_RECTANGLE_COORDS

public static final float[] FULL_RECTANGLE_COORDS

A "full" square, extending from -1 to +1 in both dimensions. When the model/view/projection matrix is identity, this will exactly cover the viewport.

The texture coordinates are Y-inverted relative to RECTANGLE. (This seems to work out right with external textures from SurfaceTexture.)

FULL_RECTANGLE_TEX_COORDS

public static final float[] FULL_RECTANGLE_TEX_COORDS

FULL_RECTANGLE_TEX_COORDS_FLIP_HORIZONTAL

public static final float[] FULL_RECTANGLE_TEX_COORDS_FLIP_HORIZONTAL

FULL_RECTANGLE_TEX_COORDS_FLIP_VERTICAL

public static final float[] FULL_RECTANGLE_TEX_COORDS_FLIP_VERTICAL

FULL_RECTANGLE_BUF

public static final java.nio.FloatBuffer FULL_RECTANGLE_BUF

FULL_RECTANGLE_TEX_BUF

public static final java.nio.FloatBuffer FULL_RECTANGLE_TEX_BUF

FULL_RECTANGLE_TEX_HORIZONTAL_FLIP_BUF

public static final java.nio.FloatBuffer FULL_RECTANGLE_TEX_HORIZONTAL_FLIP_BUF

FULL_RECTANGLE_TEX_VERTICAL_FLIP_BUF

public static final java.nio.FloatBuffer FULL_RECTANGLE_TEX_VERTICAL_FLIP_BUF

Constructor Detail

Drawable2d

public Drawable2d(Drawable2d.Prefab shape)

Prepares a drawable from a "pre-fabricated" shape definition.

Does no EGL/GL operations, so this can be done at any time.

Drawable2d

public Drawable2d()

Method Detail

getVertexArray

public java.nio.FloatBuffer getVertexArray()

Returns the array of vertices.

To avoid allocations, this returns internal state. The caller must not modify it.

getTexCoordArray

public java.nio.FloatBuffer getTexCoordArray()

Returns the array of texture coordinates.

To avoid allocations, this returns internal state. The caller must not modify it.

getVertexCount

public int getVertexCount()

Returns the number of vertices stored in the vertex array.

getVertexStride

public int getVertexStride()

Returns the width, in bytes, of the data for each vertex.

getTexCoordStride

public int getTexCoordStride()

Returns the width, in bytes, of the data for each texture coordinate.

getCoordsPerVertex

public int getCoordsPerVertex()

Returns the number of position coordinates per vertex. This will be 2 or 3.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object