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| public class GdxPerf implements ApplicationListener { private OrthographicCamera camera; private SpriteBatch batch; private Texture texture; private Sprite sprite; private AffineTransform transform = new AffineTransform(); private float[] verticesSrc = null; private float[] verticesDst = null; private float[] src = new float[8]; private float[] dst = new float[8]; @Override public void create() { camera = new OrthographicCamera(); batch = new SpriteBatch(); texture = new Texture(Gdx.files.internal("data/Alice.png")); texture.setFilter(TextureFilter.Linear, TextureFilter.Linear); TextureRegion region = new TextureRegion(texture, 0, 0, 512, 512); sprite = new Sprite(region); sprite.setPosition(0, 0); verticesSrc = sprite.getVertices(); verticesDst = Arrays.copyOf(sprite.getVertices(), sprite.getVertices().length); transform = new AffineTransform(); }
@Override public void dispose() { batch.dispose(); texture.dispose(); }
@Override public void render() { Gdx.gl.glClearColor(0, 0, 0, 0); Gdx.gl.glClear(GL10.GL_COLOR_BUFFER_BIT); transform.setToIdentity(); transform.translate(50.0d, 50.0d); transform.scale(1.5d, 1.5d); transform.shear(0.25d, 0.10d); transform.rotate(-Math.PI / 8.0d); src[0] = verticesSrc[SpriteBatch.X1]; src[1] = verticesSrc[SpriteBatch.Y1]; src[2] = verticesSrc[SpriteBatch.X2]; src[3] = verticesSrc[SpriteBatch.Y2]; src[4] = verticesSrc[SpriteBatch.X3]; src[5] = verticesSrc[SpriteBatch.Y3]; src[6] = verticesSrc[SpriteBatch.X4]; src[7] = verticesSrc[SpriteBatch.Y4];
transform.transform(src, 0, dst, 0, 4); verticesDst[SpriteBatch.X1] = dst[0]; verticesDst[SpriteBatch.Y1] = dst[1]; verticesDst[SpriteBatch.X2] = dst[2]; verticesDst[SpriteBatch.Y2] = dst[3]; verticesDst[SpriteBatch.X3] = dst[4]; verticesDst[SpriteBatch.Y3] = dst[5]; verticesDst[SpriteBatch.X4] = dst[6]; verticesDst[SpriteBatch.Y4] = dst[7];
camera.setToOrtho(false); batch.setProjectionMatrix(camera.combined); batch.begin(); batch.draw(texture, verticesDst, 0, verticesDst.length); batch.end(); }
@Override public void resize(int width, int height) { }
@Override public void pause() { }
@Override public void resume() { } } |