SharedMemoryVertexBufferObject

Class Overview

Compared to ZeroMemoryVertexBufferObject, all SharedMemoryVertexBufferObjects share a single ByteBuffer which is used by whichever SharedMemoryVertexBufferObject instance is currently buffering data, at the cost of expensive data buffering (up to 5x slower!) and a little synchronization overhead.

Usually a SharedMemoryVertexBufferObject is preferred to a ZeroMemoryVertexBufferObject when the following conditions need to be met:

1. Minimum amount of runtime GarbageCollector activity.

(c) Zynga 2011

Summary

[Expand] Inherited Constants
From interface org.andengine.opengl.vbo.IVertexBufferObject int HARDWARE_BUFFER_ID_INVALID

[Expand] Inherited Fields
From class org.andengine.opengl.vbo.ZeroMemoryVertexBufferObject protected final boolean mAutoDispose protected final int mCapacity protected boolean mDirtyOnHardware protected boolean mDisposed protected int mHardwareBufferID protected final int mUsage protected final VertexBufferObjectAttributes mVertexBufferObjectAttributes protected final VertexBufferObjectManager mVertexBufferObjectManager

[Expand] Inherited Methods
From class org.andengine.opengl.vbo.ZeroMemoryVertexBufferObject ByteBuffer aquireByteBuffer() When a non null ByteBuffer is returned by this function, it is guaranteed that releaseByteBuffer(ByteBuffer) is called. void bind(GLState pGLState) void bind(GLState pGLState, ShaderProgram pShaderProgram) void dispose() void draw(int pPrimitiveType, int pCount) void draw(int pPrimitiveType, int pOffset, int pCount) void finalize() int getByteCapacity() int getCapacity() int getGPUMemoryByteSize() int getHardwareBufferID() int getHeapMemoryByteSize() int getNativeHeapMemoryByteSize() VertexBufferObjectManager getVertexBufferObjectManager() boolean isAutoDispose() boolean isDirtyOnHardware() boolean isDisposed() boolean isLoadedToHardware() abstract void onPopulateBufferData(ByteBuffer byteBuffer) void releaseByteBuffer(ByteBuffer byteBuffer) void setDirtyOnHardware() Mark this VertexBufferObject dirty so it gets updated on the hardware. void setNotLoadedToHardware() Mark this VertexBufferObject as not not loaded to hardware. void unbind(GLState pGLState, ShaderProgram pShaderProgram) void unloadFromHardware(GLState pGLState)
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait() final void wait(long arg0, int arg1) final void wait(long arg0)
From interface org.andengine.opengl.vbo.IVertexBufferObject abstract void bind(GLState pGLState) abstract void bind(GLState pGLState, ShaderProgram pShaderProgram) abstract void draw(int pPrimitiveType, int pCount) abstract void draw(int pPrimitiveType, int pOffset, int pCount) abstract int getByteCapacity() abstract int getCapacity() abstract int getGPUMemoryByteSize() abstract int getHardwareBufferID() abstract int getHeapMemoryByteSize() abstract int getNativeHeapMemoryByteSize() abstract VertexBufferObjectManager getVertexBufferObjectManager() abstract boolean isAutoDispose() abstract boolean isDirtyOnHardware() abstract boolean isLoadedToHardware() abstract void setDirtyOnHardware() Mark this VertexBufferObject dirty so it gets updated on the hardware. abstract void setNotLoadedToHardware() Mark this VertexBufferObject as not not loaded to hardware. abstract void unbind(GLState pGLState, ShaderProgram pShaderProgram) abstract void unloadFromHardware(GLState pGLState)
From interface org.andengine.util.IDisposable abstract void dispose() abstract boolean isDisposed()