protected override Task <ResultStatus> DoCommandOverride(ICommandContext commandContext) { var assetManager = new AssetManager(); // Create atlas texture Dictionary <SpriteInfo, PackedSpriteInfo> spriteToPackedSprite = null; // Generate texture atlas var isPacking = AssetParameters.SheetAsset.Packing.Enabled; if (isPacking) { var resultStatus = CreateAtlasTextures(commandContext.Logger, out spriteToPackedSprite); if (resultStatus != ResultStatus.Successful) { return(Task.FromResult(resultStatus)); } } var imageGroupData = new SpriteSheet { Sprites = new List <Graphics.Sprite>() }; // add the sprite data to the sprite list. foreach (var image in AssetParameters.SheetAsset.Sprites) { string textureUrl; RectangleF region; ImageOrientation orientation; var borders = image.Borders; var center = image.Center + (image.CenterFromMiddle ? new Vector2(image.TextureRegion.Width, image.TextureRegion.Height) / 2 : Vector2.Zero); if (isPacking && spriteToPackedSprite.ContainsKey(image)) // ensure that unpackable elements (invalid because of null size/texture) are properly added in the sheet using the normal path { var packedSprite = spriteToPackedSprite[image]; var isOriginalSpriteRotated = image.Orientation == ImageOrientation.Rotated90; region = packedSprite.Region; orientation = (packedSprite.IsRotated ^ isOriginalSpriteRotated) ? ImageOrientation.Rotated90 : ImageOrientation.AsIs; textureUrl = SpriteSheetAsset.BuildTextureAtlasUrl(Url, spriteToPackedSprite[image].AtlasTextureIndex); // update the center and border info, if the packer rotated the sprite if (packedSprite.IsRotated) { // turned the sprite CCW if (isOriginalSpriteRotated) { var oldCenterX = center.X; center.X = center.Y; center.Y = region.Height - oldCenterX; var oldBorderW = borders.W; borders.W = borders.X; borders.X = borders.Z; borders.Z = borders.Y; borders.Y = oldBorderW; } else // turned the sprite CW { var oldCenterX = center.X; center.X = region.Width - center.Y; center.Y = oldCenterX; var oldBorderW = borders.W; borders.W = borders.Y; borders.Y = borders.Z; borders.Z = borders.X; borders.X = oldBorderW; } } } else { region = image.TextureRegion; orientation = image.Orientation; AssetParameters.ImageToTextureUrl.TryGetValue(image, out textureUrl); } // Affect the texture Texture texture = null; if (textureUrl != null) { texture = AttachedReferenceManager.CreateSerializableVersion <Texture>(Guid.Empty, textureUrl); } else { commandContext.Logger.Warning("Image '{0}' has an invalid image source file '{1}', resulting texture will be null.", image.Name, image.Source); } imageGroupData.Sprites.Add(new Graphics.Sprite { Name = image.Name, Region = region, Orientation = orientation, Center = center, Borders = borders, PixelsPerUnit = new Vector2(image.PixelsPerUnit), Texture = texture, IsTransparent = false, }); } // set the transparency information to all the sprites if (AssetParameters.SheetAsset.Alpha != AlphaFormat.None) // Skip the calculation when format is forced without alpha. { var urlToTexImage = new Dictionary <string, Tuple <TexImage, Image> >(); using (var texTool = new TextureTool()) { foreach (var sprite in imageGroupData.Sprites) { if (sprite.Texture == null) // the sprite texture is invalid { continue; } var textureUrl = AttachedReferenceManager.GetOrCreateAttachedReference(sprite.Texture).Url; if (!urlToTexImage.ContainsKey(textureUrl)) { var image = assetManager.Load <Image>(textureUrl); var newTexImage = texTool.Load(image, false); // the sRGB mode does not impact on the alpha level texTool.Decompress(newTexImage, false); // the sRGB mode does not impact on the alpha level urlToTexImage[textureUrl] = Tuple.Create(newTexImage, image); } var texImage = urlToTexImage[textureUrl].Item1; var region = new Rectangle { X = (int)Math.Floor(sprite.Region.X), Y = (int)Math.Floor(sprite.Region.Y) }; region.Width = (int)Math.Ceiling(sprite.Region.Right) - region.X; region.Height = (int)Math.Ceiling(sprite.Region.Bottom) - region.Y; var alphaLevel = texTool.GetAlphaLevels(texImage, region, null, commandContext.Logger); // ignore transparent color key here because the input image has already been processed sprite.IsTransparent = alphaLevel != AlphaLevels.NoAlpha; } // free all the allocated images foreach (var tuple in urlToTexImage.Values) { tuple.Item1.Dispose(); assetManager.Unload(tuple.Item2); } } } // save the imageData into the data base assetManager.Save(Url, imageGroupData); return(Task.FromResult(ResultStatus.Successful)); }
/// <summary> /// Creates and Saves texture atlas image from images in GroupAsset /// </summary> /// <param name="logger">Status Logger</param> /// <param name="spriteToPackedSprite">A map associating the packed sprite info to the original sprite</param> /// <returns>Status of building</returns> private ResultStatus CreateAtlasTextures(Logger logger, out Dictionary <SpriteInfo, PackedSpriteInfo> spriteToPackedSprite) { spriteToPackedSprite = new Dictionary <SpriteInfo, PackedSpriteInfo>(); // Pack textures using (var texTool = new TextureTool()) { var textureElements = new List <AtlasTextureElement>(); // Input textures var imageDictionary = new Dictionary <string, Image>(); var imageInfoDictionary = new Dictionary <string, SpriteInfo>(); var sprites = AssetParameters.SheetAsset.Sprites; var packingParameters = AssetParameters.SheetAsset.Packing; bool isSRgb = AssetParameters.SheetAsset.ColorSpace.ToColorSpace(AssetParameters.ColorSpace, TextureHint.Color) == ColorSpace.Linear; for (var i = 0; i < sprites.Count; ++i) { var sprite = sprites[i]; if (sprite.TextureRegion.Height == 0 || sprite.TextureRegion.Width == 0 || sprite.Source == null) { continue; } // Lazy load input texture and cache in the dictionary for the later use Image texture; if (!imageDictionary.ContainsKey(sprite.Source)) { texture = LoadImage(texTool, new UFile(sprite.Source), isSRgb); imageDictionary[sprite.Source] = texture; } else { texture = imageDictionary[sprite.Source]; } var key = Url + "_" + i; var sourceRectangle = new RotableRectangle(sprite.TextureRegion, sprite.Orientation == ImageOrientation.Rotated90); textureElements.Add(new AtlasTextureElement(key, texture, sourceRectangle, packingParameters.BorderSize, sprite.BorderModeU, sprite.BorderModeV, sprite.BorderColor)); imageInfoDictionary[key] = sprite; } // find the maximum texture size supported var maximumSize = TextureHelper.FindBestTextureSize(new TextureHelper.ImportParameters(AssetParameters), new Size2(int.MaxValue / 2, int.MaxValue / 2)); // Initialize packing configuration from GroupAsset var texturePacker = new TexturePacker { Algorithm = packingParameters.PackingAlgorithm, AllowMultipack = packingParameters.AllowMultipacking, MaxWidth = maximumSize.Width, MaxHeight = maximumSize.Height, AllowRotation = packingParameters.AllowRotations, }; var canPackAllTextures = texturePacker.PackTextures(textureElements); if (!canPackAllTextures) { logger.Error("Failed to pack all textures"); return(ResultStatus.Failed); } // Create and save every generated texture atlas for (var textureAtlasIndex = 0; textureAtlasIndex < texturePacker.AtlasTextureLayouts.Count; ++textureAtlasIndex) { var atlasLayout = texturePacker.AtlasTextureLayouts[textureAtlasIndex]; ResultStatus resultStatus; using (var atlasImage = AtlasTextureFactory.CreateTextureAtlas(atlasLayout, isSRgb)) using (var texImage = texTool.Load(atlasImage, isSRgb)) { var outputUrl = SpriteSheetAsset.BuildTextureAtlasUrl(Url, textureAtlasIndex); var convertParameters = new TextureHelper.ImportParameters(AssetParameters) { OutputUrl = outputUrl }; resultStatus = TextureHelper.ImportTextureImage(texTool, texImage, convertParameters, CancellationToken, logger); } foreach (var texture in atlasLayout.Textures) { spriteToPackedSprite.Add(imageInfoDictionary[texture.Name], new PackedSpriteInfo(texture.DestinationRegion, textureAtlasIndex, packingParameters.BorderSize)); } if (resultStatus != ResultStatus.Successful) { // Dispose used textures foreach (var image in imageDictionary.Values) { image.Dispose(); } return(resultStatus); } } // Dispose used textures foreach (var image in imageDictionary.Values) { image.Dispose(); } } return(ResultStatus.Successful); }
protected override Task <ResultStatus> DoCommandOverride(ICommandContext commandContext) { var assetManager = new AssetManager(); // Create atlas texture Dictionary <SpriteInfo, PackedSpriteInfo> spriteToPackedSprite = null; // Generate texture atlas var isPacking = AssetParameters.SheetAsset.Packing.Enabled; if (isPacking) { var resultStatus = CreateAtlasTextures(commandContext.Logger, out spriteToPackedSprite); if (resultStatus != ResultStatus.Successful) { return(Task.FromResult(resultStatus)); } } var imageGroupData = new SpriteSheet { Sprites = new List <Graphics.Sprite>() }; // add the sprite data to the sprite list. foreach (var image in AssetParameters.SheetAsset.Sprites) { string textureUrl; RectangleF region; ImageOrientation orientation; var borders = image.Borders; var center = image.Center + (image.CenterFromMiddle ? new Vector2(image.TextureRegion.Width, image.TextureRegion.Height) / 2 : Vector2.Zero); if (isPacking && spriteToPackedSprite.ContainsKey(image)) // ensure that unpackable elements (invalid because of null size/texture) are properly added in the sheet using the normal path { var packedSprite = spriteToPackedSprite[image]; var isOriginalSpriteRotated = image.Orientation == ImageOrientation.Rotated90; region = packedSprite.Region; orientation = (packedSprite.IsRotated ^ isOriginalSpriteRotated) ? ImageOrientation.Rotated90 : ImageOrientation.AsIs; textureUrl = SpriteSheetAsset.BuildTextureAtlasUrl(Url, spriteToPackedSprite[image].AtlasTextureIndex); // update the center and border info, if the packer rotated the sprite if (packedSprite.IsRotated) { // turned the sprite CCW if (isOriginalSpriteRotated) { var oldCenterX = center.X; center.X = center.Y; center.Y = region.Height - oldCenterX; var oldBorderW = borders.W; borders.W = borders.X; borders.X = borders.Z; borders.Z = borders.Y; borders.Y = oldBorderW; } else // turned the sprite CW { var oldCenterX = center.X; center.X = region.Width - center.Y; center.Y = oldCenterX; var oldBorderW = borders.W; borders.W = borders.Y; borders.Y = borders.Z; borders.Z = borders.X; borders.X = oldBorderW; } } } else { region = image.TextureRegion; orientation = image.Orientation; AssetParameters.ImageToTextureUrl.TryGetValue(image, out textureUrl); } // Affect the texture Texture texture = null; if (textureUrl != null) { texture = AttachedReferenceManager.CreateSerializableVersion <Texture>(Guid.Empty, textureUrl); } else { commandContext.Logger.Warning("Image '{0}' has an invalid image source file '{1}', resulting texture will be null.", image.Name, image.Source); } imageGroupData.Sprites.Add(new Graphics.Sprite { Name = image.Name, Region = region, IsTransparent = AssetParameters.SheetAsset.Alpha != AlphaFormat.None, // todo analyze texture region texture data to auto-determine alpha? Orientation = orientation, Center = center, Borders = borders, PixelsPerUnit = new Vector2(image.PixelsPerUnit), Texture = texture }); } // save the imageData into the data base assetManager.Save(Url, imageGroupData); return(Task.FromResult(ResultStatus.Successful)); }