gistfile1.java

public class Mesh implements Disposable {
	public enum VertexDataType {
		VertexArray, VertexBufferObject, VertexBufferObjectSubData,
	}

	/** list of all meshes **/
	static final Map<Application, List<Mesh>> meshes = new HashMap<Application, List<Mesh>>();

	/** used for benchmarking **/
	public static boolean forceVBO = false;

	final VertexData vertices;
	final IndexData indices;
	boolean autoBind = true;
	final boolean isVertexArray;
	int refCount = 0;

	/** Creates a new Mesh with the given attributes.
	 * 
	 * @param isStatic whether this mesh is static or not. Allows for internal optimizations.
	 * @param maxVertices the maximum number of vertices this mesh can hold
	 * @param maxIndices the maximum number of indices this mesh can hold
	 * @param attributes the {@link VertexAttribute}s. Each vertex attribute defines one property of a vertex such as position,
	 *           normal or texture coordinate */
	public Mesh (boolean isStatic, int maxVertices, int maxIndices, VertexAttribute... attributes) {
		if (Gdx.gl20 != null || Gdx.gl11 != null || Mesh.forceVBO) {
			vertices = new VertexBufferObject(isStatic, maxVertices, attributes);
			indices = new IndexBufferObject(isStatic, maxIndices);
			isVertexArray = false;
		} else {
			vertices = new VertexArray(maxVertices, attributes);
			indices = new IndexBufferObject(maxIndices);
			isVertexArray = true;
		}

		addManagedMesh(Gdx.app, this);
	}

	/** Creates a new Mesh with the given attributes.
	 * 
	 * @param isStatic whether this mesh is static or not. Allows for internal optimizations.
	 * @param maxVertices the maximum number of vertices this mesh can hold
	 * @param maxIndices the maximum number of indices this mesh can hold
	 * @param attributes the {@link VertexAttributes}. Each vertex attribute defines one property of a vertex such as position,
	 *           normal or texture coordinate */
	public Mesh (boolean isStatic, int maxVertices, int maxIndices, VertexAttributes attributes) {
		if (Gdx.gl20 != null || Gdx.gl11 != null || Mesh.forceVBO) {
			vertices = new VertexBufferObject(isStatic, maxVertices, attributes);
			indices = new IndexBufferObject(isStatic, maxIndices);
			isVertexArray = false;
		} else {
			vertices = new VertexArray(maxVertices, attributes);
			indices = new IndexBufferObject(maxIndices);
			isVertexArray = true;
		}

		addManagedMesh(Gdx.app, this);
	}

	/** Creates a new Mesh with the given attributes. This is an expert method with no error checking. Use at your own risk.
	 * 
	 * @param type the {@link VertexDataType} to be used, VBO or VA.
	 * @param isStatic whether this mesh is static or not. Allows for internal optimizations.
	 * @param maxVertices the maximum number of vertices this mesh can hold
	 * @param maxIndices the maximum number of indices this mesh can hold
	 * @param attributes the {@link VertexAttribute}s. Each vertex attribute defines one property of a vertex such as position,
	 *           normal or texture coordinate */
	public Mesh (VertexDataType type, boolean isStatic, int maxVertices, int maxIndices, VertexAttribute... attributes) {
		if (type == VertexDataType.VertexArray && Gdx.graphics.isGL20Available()) type = VertexDataType.VertexBufferObject;

		if (type == VertexDataType.VertexBufferObject) {
			vertices = new VertexBufferObject(isStatic, maxVertices, attributes);
			indices = new IndexBufferObject(isStatic, maxIndices);
			isVertexArray = false;
		} else if (type == VertexDataType.VertexBufferObjectSubData) {
			vertices = new VertexBufferObjectSubData(isStatic, maxVertices, attributes);
			indices = new IndexBufferObjectSubData(isStatic, maxIndices);
			isVertexArray = false;
		} else {
			vertices = new VertexArray(maxVertices, attributes);
			indices = new IndexBufferObject(maxIndices);
			isVertexArray = true;
		}
		addManagedMesh(Gdx.app, this);
	}