private void CopyAllocatedItemsToAtlas(List <TextureTools.AtlasItem> items, string atlasChain, int atlasId, Size size)
{
var atlasPath = AssetCooker.GetAtlasPath(atlasChain, atlasId);
var atlasPixels = new Color4[size.Width * size.Height];
foreach (var item in items.Where(i => i.Allocated))
{
var atlasRect = item.AtlasRect;
using (var bitmap = TextureTools.OpenAtlasItemBitmapAndRescaleIfNeeded(AssetCooker.Platform, item)) {
CopyPixels(bitmap, atlasPixels, atlasRect.A.X, atlasRect.A.Y, size.Width, size.Height);
}
var atlasPart = new TextureAtlasElement.Params {
AtlasRect = atlasRect,
AtlasPath = Path.ChangeExtension(atlasPath, null)
};
var srcPath = Path.ChangeExtension(item.Path, item.SourceExtension);
InternalPersistence.Instance.WriteObjectToBundle(AssetCooker.OutputBundle, item.Path, atlasPart, Persistence.Format.Binary,
item.SourceExtension, AssetCooker.InputBundle.GetFileLastWriteTime(srcPath), AssetAttributes.None, item.CookingRules.SHA1);
// Delete non-atlased texture since now its useless
var texturePath = Path.ChangeExtension(item.Path, AssetCooker.GetPlatformTextureExtension());
if (AssetCooker.OutputBundle.FileExists(texturePath))
{
AssetCooker.DeleteFileFromBundle(texturePath);
}
UserInterface.Instance.IncreaseProgressBar();
}
Console.WriteLine("+ " + atlasPath);
var firstItem = items.First(i => i.Allocated);
using (var atlas = new Bitmap(atlasPixels, size.Width, size.Height)) {
AssetCooker.ImportTexture(atlasPath, atlas, firstItem.CookingRules, AssetCooker.InputBundle.GetFileLastWriteTime(atlasPath), CookingRulesSHA1: null);
}
}
private bool Converter(string srcPath, string dstPath)
{
var rules = AssetCooker.CookingRulesMap[Path.ChangeExtension(dstPath, originalTextureExtension)];
if (rules.TextureAtlas != null)
{
// No need to cache this texture since it is a part of texture atlas.
return(false);
}
using (var stream = File.OpenRead(srcPath)) {
var bitmap = new Bitmap(stream);
if (TextureTools.ShouldDownscale(AssetCooker.Platform, bitmap, rules))
{
var scaledBitmap = TextureTools.DownscaleTexture(AssetCooker.Platform, bitmap, srcPath, rules);
bitmap.Dispose();
bitmap = scaledBitmap;
}
AssetCooker.ImportTexture(dstPath, bitmap, rules, File.GetLastWriteTime(srcPath), rules.SHA1);
bitmap.Dispose();
}
return(true);
}
private IEnumerable <Size> EnumerateAtlasSizes(bool squareAtlas, int minSize)
{
if (squareAtlas)
{
for (var i = minSize; i <= TextureTools.GetMaxAtlasSize().Width; i *= 2)
{
yield return(new Size(i, i));
}
}
else
{
for (var i = minSize; i <= TextureTools.GetMaxAtlasSize().Width / 2; i *= 2)
{
yield return(new Size(i, i));
yield return(new Size(i * 2, i));
yield return(new Size(i, i * 2));
}
yield return(TextureTools.GetMaxAtlasSize());
}
}
public void ImportTexture(string path, Bitmap texture, ICookingRules rules, DateTime time, byte[] CookingRulesSHA1)
{
var textureParamsPath = Path.ChangeExtension(path, ".texture");
var textureParams = new TextureParams {
WrapMode = rules.WrapMode,
MinFilter = rules.MinFilter,
MagFilter = rules.MagFilter,
};
if (!AreTextureParamsDefault(rules))
{
TextureTools.UpscaleTextureIfNeeded(ref texture, rules, false);
var isNeedToRewriteTexParams = true;
if (AssetBundle.FileExists(textureParamsPath))
{
var oldTexParams = InternalPersistence.Instance.ReadObject <TextureParams>(textureParamsPath, AssetBundle.OpenFile(textureParamsPath));
isNeedToRewriteTexParams = !oldTexParams.Equals(textureParams);
}
if (isNeedToRewriteTexParams)
{
InternalPersistence.Instance.WriteObjectToBundle(AssetBundle, textureParamsPath, textureParams, Persistence.Format.Binary, ".texture",
File.GetLastWriteTime(textureParamsPath), AssetAttributes.None, null);
}
}
else
{
if (AssetBundle.FileExists(textureParamsPath))
{
DeleteFileFromBundle(textureParamsPath);
}
}
if (rules.GenerateOpacityMask)
{
var maskPath = Path.ChangeExtension(path, ".mask");
OpacityMaskCreator.CreateMask(AssetBundle, texture, maskPath);
}
var attributes = AssetAttributes.ZippedDeflate;
if (!TextureConverterUtils.IsPowerOf2(texture.Width) || !TextureConverterUtils.IsPowerOf2(texture.Height))
{
attributes |= AssetAttributes.NonPowerOf2Texture;
}
switch (Target.Platform)
{
case TargetPlatform.Android:
//case TargetPlatform.iOS:
var f = rules.PVRFormat;
if (f == PVRFormat.ARGB8 || f == PVRFormat.RGB565 || f == PVRFormat.RGBA4)
{
TextureConverter.RunPVRTexTool(texture, AssetBundle, path, attributes, rules.MipMaps, rules.HighQualityCompression, rules.PVRFormat, CookingRulesSHA1, time);
}
else
{
TextureConverter.RunEtcTool(texture, AssetBundle, path, attributes, rules.MipMaps, rules.HighQualityCompression, CookingRulesSHA1, time);
}
break;
case TargetPlatform.iOS:
TextureConverter.RunPVRTexTool(texture, AssetBundle, path, attributes, rules.MipMaps, rules.HighQualityCompression, rules.PVRFormat, CookingRulesSHA1, time);
break;
case TargetPlatform.Win:
case TargetPlatform.Mac:
TextureConverter.RunNVCompress(texture, AssetBundle, path, attributes, rules.DDSFormat, rules.MipMaps, CookingRulesSHA1, time);
break;
default:
throw new Lime.Exception();
}
}
private int PackItemsToAtlas(string atlasChain, List <TextureTools.AtlasItem> items,
AtlasOptimization atlasOptimization, int initialAtlasId, bool squareAtlas)
{
// Sort images in descending size order
items.Sort((x, y) => {
var a = Math.Max(x.BitmapInfo.Width, x.BitmapInfo.Height);
var b = Math.Max(y.BitmapInfo.Width, y.BitmapInfo.Height);
return(b - a);
});
var atlasId = initialAtlasId;
while (items.Count > 0)
{
if (atlasId >= AssetCooker.MaxAtlasChainLength)
{
throw new Lime.Exception("Too many textures in the atlas chain {0}", atlasChain);
}
var bestSize = new Size(0, 0);
double bestPackRate = 0;
int minItemsLeft = Int32.MaxValue;
// TODO: Fix for non-square atlases
var maxTextureSize = items.Max(item => Math.Max(item.BitmapInfo.Height, item.BitmapInfo.Width));
var minAtlasSize = Math.Max(64, TextureTools.CalcUpperPowerOfTwo(maxTextureSize));
foreach (var size in EnumerateAtlasSizes(squareAtlas: squareAtlas, minSize: minAtlasSize))
{
double packRate;
var prevAllocated = items.Where(i => i.Allocated).ToList();
PackItemsToAtlas(items, size, out packRate);
switch (atlasOptimization)
{
case AtlasOptimization.Memory:
if (packRate * 0.95f > bestPackRate)
{
bestPackRate = packRate;
bestSize = size;
}
break;
case AtlasOptimization.DrawCalls: {
var notAllocatedCount = items.Count(item => !item.Allocated);
if (notAllocatedCount < minItemsLeft)
{
minItemsLeft = notAllocatedCount;
bestSize = size;
}
else if (notAllocatedCount == minItemsLeft)
{
if (items.Where(i => i.Allocated).SequenceEqual(prevAllocated))
{
continue;
}
else
{
minItemsLeft = notAllocatedCount;
bestSize = size;
}
}
if (notAllocatedCount == 0)
{
goto end;
}
break;
}
}
}
end:
if (atlasOptimization == AtlasOptimization.Memory && bestPackRate == 0)
{
throw new Lime.Exception("Failed to create atlas '{0}'", atlasChain);
}
PackItemsToAtlas(items, bestSize, out bestPackRate);
CopyAllocatedItemsToAtlas(items, atlasChain, atlasId, bestSize);
items.RemoveAll(x => x.Allocated);
atlasId++;
}
return(atlasId);
}
private void BuildAtlasChain(string atlasChain)
{
for (var i = 0; i < AssetCooker.MaxAtlasChainLength; i++)
{
var atlasPath = AssetCooker.GetAtlasPath(atlasChain, i);
if (AssetCooker.OutputBundle.FileExists(atlasPath))
{
AssetCooker.DeleteFileFromBundle(atlasPath);
}
else
{
break;
}
}
var pluginItems = new Dictionary <string, List <TextureTools.AtlasItem> >();
var items = new Dictionary <AtlasOptimization, List <TextureTools.AtlasItem> >();
items[AtlasOptimization.Memory] = new List <TextureTools.AtlasItem>();
items[AtlasOptimization.DrawCalls] = new List <TextureTools.AtlasItem>();
foreach (var fileInfo in AssetBundle.Current.EnumerateFileInfos(null, textureExtension))
{
var cookingRules = AssetCooker.CookingRulesMap[fileInfo.Path];
if (cookingRules.TextureAtlas == atlasChain)
{
var item = new TextureTools.AtlasItem {
Path = Path.ChangeExtension(fileInfo.Path, atlasPartExtension),
CookingRules = cookingRules,
SourceExtension = Path.GetExtension(fileInfo.Path)
};
var bitmapInfo = TextureTools.BitmapInfo.FromFile(AssetCooker.InputBundle, fileInfo.Path);
if (bitmapInfo == null)
{
using (var bitmap = TextureTools.OpenAtlasItemBitmapAndRescaleIfNeeded(AssetCooker.Platform, item)) {
item.BitmapInfo = TextureTools.BitmapInfo.FromBitmap(bitmap);
}
}
else
{
var srcTexturePath = AssetPath.Combine(The.Workspace.AssetsDirectory, Path.ChangeExtension(item.Path, item.SourceExtension));
if (TextureTools.ShouldDownscale(AssetCooker.Platform, bitmapInfo, item.CookingRules))
{
TextureTools.DownscaleTextureInfo(AssetCooker.Platform, bitmapInfo, srcTexturePath, item.CookingRules);
}
// Ensure that no image exceeded maxAtlasSize limit
TextureTools.DownscaleTextureToFitAtlas(bitmapInfo, srcTexturePath);
item.BitmapInfo = bitmapInfo;
}
var k = cookingRules.AtlasPacker;
if (!string.IsNullOrEmpty(k) && k != "Default")
{
List <TextureTools.AtlasItem> l;
if (!pluginItems.TryGetValue(k, out l))
{
pluginItems.Add(k, l = new List <TextureTools.AtlasItem>());
}
l.Add(item);
}
else
{
items[cookingRules.AtlasOptimization].Add(item);
}
}
}
var initialAtlasId = 0;
foreach (var kv in items)
{
if (kv.Value.Any())
{
if (AssetCooker.Platform == TargetPlatform.iOS)
{
Predicate <PVRFormat> isRequireSquare = (format) => {
return
(format == PVRFormat.PVRTC2 ||
format == PVRFormat.PVRTC4 ||
format == PVRFormat.PVRTC4_Forced);
};
var square = kv.Value.Where(item => isRequireSquare(item.CookingRules.PVRFormat)).ToList();
var nonSquare = kv.Value.Where(item => !isRequireSquare(item.CookingRules.PVRFormat)).ToList();
initialAtlasId = PackItemsToAtlas(atlasChain, square, kv.Key, initialAtlasId, true);
initialAtlasId = PackItemsToAtlas(atlasChain, nonSquare, kv.Key, initialAtlasId, false);
}
else
{
initialAtlasId = PackItemsToAtlas(atlasChain, kv.Value, kv.Key, initialAtlasId, false);
}
}
}
var packers = PluginLoader.CurrentPlugin.AtlasPackers.ToDictionary(i => i.Metadata.Id, i => i.Value);
foreach (var kv in pluginItems)
{
if (!packers.ContainsKey(kv.Key))
{
throw new InvalidOperationException($"Packer {kv.Key} not found");
}
initialAtlasId = packers[kv.Key](atlasChain, kv.Value, initialAtlasId);
}
}