/// <summary>
/// Function to retrieve the image data for a sprite texture as a 32 bit RGBA pixel data.
/// </summary>
/// <param name="data">The data used for sprite extraction.</param>
/// <returns>The image data for the texture.</returns>
public async Task <IGorgonImage> GetSpriteTextureImageDataAsync(SpriteExtractionData data)
{
IGorgonImage imageData = data.Texture.Texture.ToImage();
if ((imageData.Format == BufferFormat.R8G8B8A8_UNorm) ||
(imageData.Format == BufferFormat.R8G8B8A8_UNorm_SRgb))
{
return(imageData);
}
if ((imageData.FormatInfo.IsSRgb) &&
(imageData.CanConvertToFormat(BufferFormat.R8G8B8A8_UNorm_SRgb)))
{
await Task.Run(() => imageData.ConvertToFormat(BufferFormat.R8G8B8A8_UNorm_SRgb));
return(imageData);
}
else if (imageData.CanConvertToFormat(BufferFormat.R8G8B8A8_UNorm))
{
await Task.Run(() => imageData.ConvertToFormat(BufferFormat.R8G8B8A8_UNorm));
return(imageData);
}
// OK, so this is going to take drastic measures.
imageData.Dispose();
return(RenderImageData(data.Texture));
}
/// <summary>Initializes a new instance of the <see cref="ExtractParameters"/> class.</summary>
/// <param name="settings">The plug in settings.</param>
/// <param name="data">The data structure that will hold the information used to extract sprites.</param>
/// <param name="textureFile">The file used as the texture.</param>
/// <param name="extractor">The extractor used to build the sprites.</param>
/// <param name="colorPicker">The color picker service.</param>
/// <param name="folderBrowser">The project file system folder browser service.</param>
/// <param name="commonServices">The common services.</param>
/// <exception cref="ArgumentNullException">Thrown when the any parameters are <b>null</b>.</exception>
/// <exception cref="ArgumentMissingException">Thrown when the <see cref="SpriteExtractionData.Texture"/> property of the <paramref name="data"/> parameter is <b>null</b>.</exception>
public ExtractParameters(ExtractSpriteToolSettings settings, SpriteExtractionData data, IContentFile textureFile, IExtractorService extractor, IColorPickerService colorPicker, IFileSystemFolderBrowseService folderBrowser, IViewModelInjection commonServices)
: base(commonServices)
{
Settings = settings ?? throw new ArgumentNullException(nameof(settings));
Data = data ?? throw new ArgumentNullException(nameof(data));
Extractor = extractor ?? throw new ArgumentNullException(nameof(extractor));
ColorPicker = colorPicker ?? throw new ArgumentNullException(nameof(colorPicker));
FolderBrowser = folderBrowser ?? throw new ArgumentNullException(nameof(folderBrowser));
TextureFile = textureFile ?? throw new ArgumentNullException(nameof(textureFile));
if (data.Texture == null)
{
throw new ArgumentMissingException(nameof(data.Texture), nameof(data));
}
}
/// <summary>Function to retrieve the sprites from the texture atlas.</summary>
/// <param name="data">The data used to extract the sprites.</param>
/// <param name="imageData">The system memory version of the texture.</param>
/// <param name="progressCallback">A callback method used to report on progress of the operation.</param>
/// <param name="cancelToken">The token used to cancel the operation.</param>
/// <returns>A list of sprites generated by this method.</returns>
public IReadOnlyList <GorgonSprite> ExtractSprites(SpriteExtractionData data, IGorgonImage imageData, Action <ProgressData> progressCallback, CancellationToken cancelToken)
{
var result = new List <GorgonSprite>();
progressCallback?.Invoke(new ProgressData(0, data.SpriteCount));
int count = 1;
for (int array = 0; array < data.ArrayCount; ++array)
{
for (int y = 0; y < data.GridSize.Height; ++y)
{
if (cancelToken.IsCancellationRequested)
{
return(result);
}
for (int x = 0; x < data.GridSize.Width; ++x)
{
if (cancelToken.IsCancellationRequested)
{
return(result);
}
DX.Rectangle spriteRect = GetSpriteRect(x, y, data.GridOffset, data.CellSize);
if ((data.SkipEmpty) && (IsEmpty(spriteRect, imageData.Buffers[0, array + data.StartArrayIndex], data.SkipColor)))
{
continue;
}
result.Add(new GorgonSprite
{
TextureArrayIndex = array + data.StartArrayIndex,
Texture = data.Texture,
Anchor = DX.Vector2.Zero,
Size = new DX.Size2F(data.CellSize.Width, data.CellSize.Height),
TextureRegion = data.Texture.ToTexel(spriteRect),
TextureSampler = GorgonSamplerState.PointFiltering
});
progressCallback?.Invoke(new ProgressData(count++, data.SpriteCount));
}
}
}
return(result);
}
