static Rect[] PackAndSaveBitmapsAtlas(
string atlas_path, Texture2D[] textures, SwfSettingsData settings)
{
_progressBar.UpdateProgress("pack bitmaps", 0.25f);
var atlas_info = PackBitmapsAtlas(textures, settings);
RevertTexturePremultipliedAlpha(atlas_info.Atlas);
_progressBar.UpdateProgress("save atlas", 0.5f);
File.WriteAllBytes(atlas_path, atlas_info.Atlas.EncodeToPNG());
GameObject.DestroyImmediate(atlas_info.Atlas, true);
_progressBar.UpdateProgress("import atlas", 0.75f);
AssetDatabase.ImportAsset(atlas_path);
return(atlas_info.Rects);
}
static Texture2D LoadTextureFromData(SwfBitmapData bitmap, SwfSettingsData settings)
{
var argb32 = settings.BitmapTrimming
? TrimBitmapByRect(bitmap, bitmap.TrimmedRect)
: bitmap.ARGB32;
var widht = settings.BitmapTrimming
? bitmap.TrimmedRect.width
: bitmap.RealWidth;
var height = settings.BitmapTrimming
? bitmap.TrimmedRect.height
: bitmap.RealHeight;
var texture = new Texture2D(
widht, height,
TextureFormat.ARGB32, false);
texture.LoadRawTextureData(argb32);
return(texture);
}
static BitmapsAtlasInfo PackBitmapsAtlas(
Texture2D[] textures, SwfSettingsData settings)
{
var atlas_padding = Mathf.Max(0, settings.AtlasPadding);
var max_atlas_size = Mathf.Max(32, settings.AtlasPowerOfTwo
? Mathf.ClosestPowerOfTwo(settings.MaxAtlasSize)
: settings.MaxAtlasSize);
var atlas = new Texture2D(0, 0);
var rects = atlas.PackTextures(textures, atlas_padding, max_atlas_size);
while (rects == null)
{
max_atlas_size = Mathf.NextPowerOfTwo(max_atlas_size + 1);
rects = atlas.PackTextures(textures, atlas_padding, max_atlas_size);
}
return(settings.AtlasForceSquare && atlas.width != atlas.height
? BitmapsAtlasToSquare(atlas, rects)
: new BitmapsAtlasInfo {
Atlas = atlas, Rects = rects
});
}
