public override IEnumerable <ObjectUrl> GetInputFiles()
{
for (int i = 0; i < ImageToTextureIndex.Values.Distinct().Count(); i++)
{
yield return(new ObjectUrl(UrlType.Internal, ImageGroupAsset.BuildTextureUrl(Url, i)));
}
}
protected Dictionary <TImageInfo, int> CompileGroup(AssetCompilerContext context, string urlInStorage, UFile assetAbsolutePath, TGroupAsset asset, AssetCompilerResult result)
{
result.BuildSteps = new AssetBuildStep(AssetItem);
// Evaluate if we need to use a separate the alpha texture
SeparateAlphaTexture = TextureCommandHelper.ShouldSeparateAlpha(asset.Alpha, asset.Format, context.Platform, context.GetGraphicsProfile());
// create the registry containing the sprite assets texture index association
var imageToTextureIndex = new Dictionary <TImageInfo, int>();
// create and add import texture commands
if (asset.Images != null)
{
// sort sprites by referenced texture.
var spriteByTextures = asset.Images.GroupBy(x => x.Source).ToArray();
for (int i = 0; i < spriteByTextures.Length; i++)
{
// skip the texture if the file is not valid.
var textureFile = spriteByTextures[i].Key;
if (!TextureFileIsValid(textureFile))
{
continue;
}
var spriteAssetArray = spriteByTextures[i].ToArray();
foreach (var spriteAsset in spriteAssetArray)
{
imageToTextureIndex[spriteAsset] = i;
}
// create an texture asset.
var textureAsset = new TextureAsset
{
Id = Guid.Empty, // CAUTION: It is important to use an empty GUID here, as we don't want the command to be rebuilt (by default, a new asset is creating a new guid)
Alpha = asset.Alpha,
Format = asset.Format,
GenerateMipmaps = asset.GenerateMipmaps,
PremultiplyAlpha = asset.PremultiplyAlpha,
ColorKeyColor = asset.ColorKeyColor,
ColorKeyEnabled = asset.ColorKeyEnabled,
};
// Get absolute path of asset source on disk
var assetDirectory = assetAbsolutePath.GetParent();
var assetSource = UPath.Combine(assetDirectory, spriteAssetArray[0].Source);
// add the texture build command.
result.BuildSteps.Add(
new TextureAssetCompiler.TextureConvertCommand(
ImageGroupAsset.BuildTextureUrl(urlInStorage, i),
new TextureConvertParameters(assetSource, textureAsset, context.Platform, context.GetGraphicsPlatform(), context.GetGraphicsProfile(), context.GetTextureQuality(), SeparateAlphaTexture)));
}
result.BuildSteps.Add(new WaitBuildStep()); // wait the textures to be imported
}
return(imageToTextureIndex);
}
protected override void Compile(AssetCompilerContext context, string urlInStorage, UFile assetAbsolutePath, TGroupAsset asset, AssetCompilerResult result)
{
result.BuildSteps = new ListBuildStep();
// Evaluate if we need to use a separate the alpha texture
SeparateAlphaTexture = context.Platform == PlatformType.Android && asset.Alpha != AlphaFormat.None && asset.Format == TextureFormat.Compressed;
// create the registry containing the sprite assets texture index association
SpriteToTextureIndex = new Dictionary <TImageInfo, int>();
// create and add import texture commands
if (asset.Images != null)
{
// return compilation error if one or more of the sprite does not have a valid texture
var noSourceAsset = asset.Images.FirstOrDefault(x => !TextureFileIsValid(x.Source));
if (noSourceAsset != null)
{
result.Error("The texture of image '{0}' either does not exist or is invalid", noSourceAsset.Name);
return;
}
// sort sprites by referenced texture.
var spriteByTextures = asset.Images.GroupBy(x => x.Source).ToArray();
for (int i = 0; i < spriteByTextures.Length; i++)
{
var spriteAssetArray = spriteByTextures[i].ToArray();
foreach (var spriteAsset in spriteAssetArray)
{
SpriteToTextureIndex[spriteAsset] = i;
}
// create an texture asset.
var textureAsset = new TextureAsset
{
Id = Guid.Empty, // CAUTION: It is important to use an empty GUID here, as we don't want the command to be rebuilt (by default, a new asset is creating a new guid)
Alpha = asset.Alpha,
Format = asset.Format,
GenerateMipmaps = asset.GenerateMipmaps,
PremultiplyAlpha = asset.PremultiplyAlpha,
ColorKeyColor = asset.ColorKeyColor,
ColorKeyEnabled = asset.ColorKeyEnabled,
};
// Get absolute path of asset source on disk
var assetDirectory = assetAbsolutePath.GetParent();
var assetSource = UPath.Combine(assetDirectory, spriteAssetArray[0].Source);
// add the texture build command.
result.BuildSteps.Add(
new TextureAssetCompiler.TextureConvertCommand(
ImageGroupAsset.BuildTextureUrl(urlInStorage, i),
new TextureConvertParameters(assetSource, textureAsset, context.Platform, context.GetGraphicsPlatform(), context.GetGraphicsProfile(), context.GetTextureQuality(), SeparateAlphaTexture)));
}
result.BuildSteps.Add(new WaitBuildStep()); // wait the textures to be imported
}
}
public override IEnumerable <ObjectUrl> GetInputFiles()
{
for (int i = 0; i < ImageToTextureIndex.Values.Distinct().Count(); i++)
{
if (UseSeparateAlphaTexture)
{
//var textureUrl = ImageGroupAsset.BuildTextureUrl(Url, i);
//yield return new ObjectUrl(UrlType.Internal, TextureAlphaComponentSplitter.GenerateColorTextureURL(textureUrl));
//yield return new ObjectUrl(UrlType.Internal, TextureAlphaComponentSplitter.GenerateAlphaTextureURL(textureUrl));
}
else
{
yield return(new ObjectUrl(UrlType.Internal, ImageGroupAsset.BuildTextureUrl(Url, i)));
}
}
}
protected override Task <ResultStatus> DoCommandOverride(ICommandContext commandContext)
{
var assetManager = new AssetManager();
var imageGroupData = new TImageGroupData {
Images = new List <TImageData>()
};
// add the sprite data to the sprite list.
foreach (var uiImage in asset.GroupAsset.Images)
{
var newImage = new TImageData
{
Name = uiImage.Name,
Region = uiImage.TextureRegion,
IsTransparent = asset.GroupAsset.Alpha != AlphaFormat.None, // todo analyze texture region texture data to auto-determine alpha?
Orientation = uiImage.Orientation,
};
if (UseSeparateAlphaTexture)
{
var baseLocation = ImageGroupAsset.BuildTextureUrl(Url, ImageToTextureIndex[uiImage]);
newImage.Texture = new ContentReference <Graphics.Texture> {
Location = TextureAlphaComponentSplitter.GenerateColorTextureURL(baseLocation)
};
newImage.TextureAlpha = new ContentReference <Graphics.Texture> {
Location = TextureAlphaComponentSplitter.GenerateAlphaTextureURL(baseLocation)
};
}
else
{
newImage.Texture = new ContentReference <Graphics.Texture> {
Location = ImageGroupAsset.BuildTextureUrl(Url, ImageToTextureIndex[uiImage])
};
}
SetImageSpecificFields(uiImage, newImage);
imageGroupData.Images.Add(newImage);
}
// save the imageData into the data base
assetManager.Save(Url, imageGroupData);
return(Task.FromResult(ResultStatus.Successful));
}
protected override Task <ResultStatus> DoCommandOverride(ICommandContext commandContext)
{
var assetManager = new AssetManager();
var imageGroupData = new TImageGroupData {
Images = new List <TImageData>()
};
// add the sprite data to the sprite list.
foreach (var uiImage in asset.GroupAsset.Images)
{
var newImage = new TImageData
{
Name = uiImage.Name,
Region = uiImage.TextureRegion,
IsTransparent = asset.GroupAsset.Alpha != AlphaFormat.None, // todo analyze texture region texture data to auto-determine alpha?
Orientation = uiImage.Orientation,
};
if (UseSeparateAlphaTexture)
{
//var baseLocation = ImageGroupAsset.BuildTextureUrl(Url, ImageToTextureIndex[uiImage]);
// newImage.Texture = AttachedReferenceManager.CreateSerializableVersion<Texture>(Guid.Empty, TextureAlphaComponentSplitter.GenerateColorTextureURL(baseLocation));
// newImage.TextureAlpha = AttachedReferenceManager.CreateSerializableVersion<Texture>(Guid.Empty, TextureAlphaComponentSplitter.GenerateAlphaTextureURL(baseLocation));
}
else
{
int imageIndex;
if (ImageToTextureIndex.TryGetValue(uiImage, out imageIndex))
{
newImage.Texture = AttachedReferenceManager.CreateSerializableVersion <Texture>(Guid.Empty, ImageGroupAsset.BuildTextureUrl(Url, ImageToTextureIndex[uiImage]));
}
else
{
commandContext.Logger.Warning("Image '{0}' has an invalid image source file '{1}', resulting texture will be null.", uiImage.Name, uiImage.Source);
}
}
SetImageSpecificFields(uiImage, newImage);
imageGroupData.Images.Add(newImage);
}
// save the imageData into the data base
assetManager.Save(Url, imageGroupData);
return(Task.FromResult(ResultStatus.Successful));
}