public MaterialDescription Run(MaterialDescription material, UDirectory materialPath, PixelFormat outputFormat = PixelFormat.ETC1)
{
if (material == null) throw new ArgumentNullException("material");
var assetManager = new AssetManager();
var modifiedMaterial = material.Clone();
var textureVisitor = new MaterialTextureVisitor(modifiedMaterial);
var nodeReplacer = new MaterialNodeReplacer(modifiedMaterial);
var textureNodes = textureVisitor.GetAllModelTextureValues();
foreach (var textureNode in textureNodes)
{
var itemAsset = assetSession.FindAsset(textureNode.TextureReference.Id);
if(itemAsset == null)
throw new InvalidOperationException("The referenced texture is not included in the project session.");
var textureAsset = (TextureAsset)itemAsset.Asset;
if (textureAsset.Format != TextureFormat.Compressed || textureAsset.Alpha == AlphaFormat.None)
continue; // the texture has no alpha so there is no need to divide the texture into two sub-textures
var originalLocation = textureNode.TextureReference.Location;
throw new NotImplementedException("TODO: Need to reimplement this with removed data layer.");
using (var image = assetManager.Load<Image>(originalLocation))
{
CreateAndSaveSeparateTextures(image, originalLocation, textureAsset.GenerateMipmaps, outputFormat);
assetManager.Unload(image); // matching unload to the previous asset manager load call
}
// make new tree
var colorNode = new MaterialTextureNode(GenerateColorTextureURL(originalLocation), textureNode.TexcoordIndex, Vector2.One, Vector2.Zero);
var alphaNode = new MaterialTextureNode(GenerateAlphaTextureURL(originalLocation), textureNode.TexcoordIndex, Vector2.One, Vector2.Zero);
var substituteAlphaNode = new MaterialShaderClassNode { MixinReference = new AssetReference<EffectShaderAsset>(Guid.Empty, "ComputeColorSubstituteAlphaWithColor") };
substituteAlphaNode.CompositionNodes.Add("color1", colorNode);
substituteAlphaNode.CompositionNodes.Add("color2", alphaNode);
// set the parameters of the children so that they match the original texture
var children = new[] { colorNode, alphaNode };
foreach (var childTexture in children)
{
childTexture.Sampler.AddressModeU = textureNode.Sampler.AddressModeU;
childTexture.Sampler.AddressModeV = textureNode.Sampler.AddressModeV;
childTexture.Sampler.Filtering = textureNode.Sampler.Filtering;
childTexture.Offset = textureNode.Offset;
childTexture.Sampler.SamplerParameterKey = textureNode.Sampler.SamplerParameterKey;
childTexture.Scale = textureNode.Scale;
childTexture.TexcoordIndex = textureNode.TexcoordIndex;
}
// copy the parameter key on the color and let the one of the alpha null so that it is set automatically to available value later
colorNode.Key = textureNode.Key;
alphaNode.Key = null;
// update all the material references to the new node
nodeReplacer.Replace(textureNode, substituteAlphaNode);
}
return modifiedMaterial;
}
public unsafe void TestSaveAndLoadAssetAndIndexFileManyTimes()
{
var assetManager = new AssetManager();
var simpleAsset = new SimpleAsset("Grandpa", null) { Dble = 0.0 };
assetManager.SaveSingle(simpleAsset);
assetManager.Unload(simpleAsset);
var databaseFileProvider = (DatabaseFileProvider)VirtualFileSystem.ResolveProvider("/db", true).Provider;
databaseFileProvider.AssetIndexMap.WaitPendingOperations();
simpleAsset = null;
GC.Collect();
for (double d = 0; d < 10.0; ++d)
{
var anotherAssetManager = new AssetManager();
simpleAsset = anotherAssetManager.Load<SimpleAsset>("SimpleAssets/Grandpa");
Assert.That(simpleAsset.Dble, Is.EqualTo(d));
simpleAsset.Dble += 1.0;
anotherAssetManager.SaveSingle(simpleAsset);
anotherAssetManager.Unload(simpleAsset);
databaseFileProvider.AssetIndexMap.WaitPendingOperations();
simpleAsset = null;
GC.Collect();
}
}
public unsafe void TestSaveAndLoadAssetManyTimes()
{
var assetManager = new AssetManager();
var simpleAsset = new SimpleAsset("Grandpa", null) { Dble = 0.0 };
assetManager.SaveSingle(simpleAsset);
assetManager.Unload(simpleAsset);
simpleAsset = null;
GC.Collect();
for (double d = 0; d < 10.0; ++d)
{
simpleAsset = assetManager.Load<SimpleAsset>("SimpleAssets/Grandpa");
Assert.That(simpleAsset.Dble, Is.EqualTo(d));
simpleAsset.Dble += 1.0;
assetManager.SaveSingle(simpleAsset);
assetManager.Unload(simpleAsset);
simpleAsset = null;
GC.Collect();
}
}