Beispiel #1
0
        public BitmapRenderBlock(Dictionary <string, Texture> textureDictionary, string texturePath, ChunkPool pool,
                                 RenderSettings renderSettings, IGraphicsApi <TImage> graphics, int chunkSize, int chunksPerDimension,
                                 ExecutionDataflowBlockOptions options)
        {
            int tileSize = chunksPerDimension * chunkSize;

            graphics.SetPoolDimensions(tileSize, tileSize);
            int chunkRenderedCounter = 0;
            ThreadLocal <RendererCombi <TImage> > renderCombi = new ThreadLocal <RendererCombi <TImage> >(() =>
                                                                                                          new RendererCombi <TImage>(textureDictionary, texturePath, renderSettings, graphics));

            Block = new TransformBlock <IEnumerable <ChunkAndData>, ImageInfo <TImage> >(chunkAndData =>
            {
                var b = graphics.GetPooledImage();
                {
                    var chunkList     = chunkAndData.ToList();
                    var firstX        = chunkList.First().C.X;
                    var firstZ        = chunkList.First().C.Z;
                    var chunkRenderer = renderCombi.Value.ChunkRenderer;

                    foreach (var chunk in chunkList)
                    {
                        var x = chunk.C.X % chunksPerDimension;
                        var z = chunk.C.Z % chunksPerDimension;
                        if (x < 0)
                        {
                            x += chunksPerDimension;
                        }
                        if (z < 0)
                        {
                            z += chunksPerDimension;
                        }
                        chunkRenderer.RenderChunk(b, chunk.C, x * chunkSize, z * chunkSize);

                        pool?.Return(chunk.C);
                    }


                    var fx = CoordHelpers.GetGroupedCoordinate(firstX, chunksPerDimension);
                    var fz = CoordHelpers.GetGroupedCoordinate(firstZ, chunksPerDimension);

                    Interlocked.Increment(ref processedCount);
                    Interlocked.Add(ref chunkRenderedCounter, chunkList.Count);

                    if (chunkRenderedCounter >= 32)
                    {
                        var v = chunkRenderedCounter;
                        ChunksRendered?.Invoke(this, new ChunksRenderedEventArgs(v));
                        Interlocked.Add(ref chunkRenderedCounter, -v);
                    }

                    return(new ImageInfo <TImage>()
                    {
                        Image = b, X = fx, Z = fz, Cd = chunkList.SelectMany(x => x.Cd)
                    });
                }
            }, options);
        }