/// <summary>
/// Decodes a byte array of image data given the source image in bytes, width, height, and DXGI format.
/// </summary>
/// <param name="byte[]">The byte array of the image</param>
/// <param name="Width">The width of the image in pixels.</param>
/// <param name="Height">The height of the image in pixels.</param>
/// <param name=" DDS.DXGI_FORMAT">The image format.</param>
/// <returns>Returns a byte array of decoded data. </returns>
public static byte[] DecodeBlock(byte[] data, uint Width, uint Height, TEX_FORMAT Format, PlatformSwizzle PlatformSwizzle = PlatformSwizzle.None)
{
if (data == null)
{
throw new Exception($"Data is null!");
}
if (Format <= 0)
{
throw new Exception($"Invalid Format!");
}
if (data.Length <= 0)
{
throw new Exception($"Data is empty!");
}
if (Width <= 0)
{
throw new Exception($"Invalid width size {Width}!");
}
if (Height <= 0)
{
throw new Exception($"Invalid height size {Height}!");
}
if (PlatformSwizzle == PlatformSwizzle.Platform_3DS && !IsCompressed(Format))
{
return(CTR_3DS.DecodeBlock(data, (int)Width, (int)Height, Format));
}
if (Format == TEX_FORMAT.R32G8X24_FLOAT)
{
return(ConvertBgraToRgba(DDSCompressor.DecodePixelBlock(data, (int)Width, (int)Height, DDS.DXGI_FORMAT.DXGI_FORMAT_R32G8X24_TYPELESS)));
}
if (Format == TEX_FORMAT.BC5_SNORM)
{
return(ConvertBgraToRgba(DDSCompressor.DecompressBC5(data, (int)Width, (int)Height, true, true)));
}
if (IsCompressed(Format))
{
return(ConvertBgraToRgba(DDSCompressor.DecompressBlock(data, (int)Width, (int)Height, (DDS.DXGI_FORMAT)Format)));
}
else
{
//If blue channel becomes first, do not swap them!
// if (Format.ToString().StartsWith("B") || Format == TEX_FORMAT.B5G6R5_UNORM)
// return DDSCompressor.DecodePixelBlock(data, (int)Width, (int)Height, (DDS.DXGI_FORMAT)Format);
if (IsAtscFormat(Format))
{
return(ConvertBgraToRgba(ASTCDecoder.DecodeToRGBA8888(data, (int)GetBlockWidth(Format), (int)GetBlockHeight(Format), 1, (int)Width, (int)Height, 1)));
}
else
{
return(ConvertBgraToRgba(DDSCompressor.DecodePixelBlock(data, (int)Width, (int)Height, (DDS.DXGI_FORMAT)Format)));
}
}
}
/// <summary>
/// Gets a <see cref="Bitmap"/> given an array and mip index.
/// </summary>
/// <param name="ArrayIndex">The index of the surface/array. Cubemaps will have 6</param>
/// <param name="MipLevel">The index of the mip level.</param>
/// <returns></returns>
public Bitmap GetBitmap(int ArrayLevel = 0, int MipLevel = 0)
{
uint width = Math.Max(1, Width >> MipLevel);
uint height = Math.Max(1, Height >> MipLevel);
byte[] data = GetImageData(ArrayLevel, MipLevel);
try
{
if (data == null)
{
throw new Exception("Data is null!");
}
if (PlatformSwizzle == PlatformSwizzle.Platform_3DS && !IsCompressed(Format))
{
var Image = BitmapExtension.GetBitmap(ConvertBgraToRgba(CTR_3DS.DecodeBlock(data, (int)width, (int)height, Format)),
(int)width, (int)height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
Image.RotateFlip(RotateFlipType.RotateNoneFlipY); //It's upside down for some reason so flip it
return(Image);
}
switch (Format)
{
case TEX_FORMAT.R4G4_UNORM:
return(BitmapExtension.GetBitmap(R4G4.Decompress(data, (int)width, (int)height, false),
(int)width, (int)height, System.Drawing.Imaging.PixelFormat.Format32bppArgb));
case TEX_FORMAT.BC5_SNORM:
return(DDSCompressor.DecompressBC5(data, (int)width, (int)height, true));
case TEX_FORMAT.ETC1:
return(BitmapExtension.GetBitmap(ETC1.ETC1Decompress(data, (int)width, (int)height, false),
(int)width, (int)height, System.Drawing.Imaging.PixelFormat.Format32bppArgb));
case TEX_FORMAT.ETC1_A4:
return(BitmapExtension.GetBitmap(ETC1.ETC1Decompress(data, (int)width, (int)height, true),
(int)width, (int)height, System.Drawing.Imaging.PixelFormat.Format32bppArgb));
default:
return(BitmapExtension.GetBitmap(DecodeBlock(data, width, height, Format),
(int)width, (int)height, System.Drawing.Imaging.PixelFormat.Format32bppArgb));
}
}
catch (Exception ex)
{
Forms.STErrorDialog.Show($"Texture failed to load!", "Texture [GetBitmap({MipLevel},{ArrayLevel})]", DebugInfo() + " \n" + ex);
try
{
if (Format == TEX_FORMAT.BC1_UNORM)
{
return(DDSCompressor.DecompressBC1(data, (int)Width, (int)Height, false));
}
else if (Format == TEX_FORMAT.BC1_UNORM_SRGB)
{
return(DDSCompressor.DecompressBC1(data, (int)Width, (int)Height, true));
}
else if (Format == TEX_FORMAT.BC3_UNORM_SRGB)
{
return(DDSCompressor.DecompressBC3(data, (int)Width, (int)Height, false));
}
else if (Format == TEX_FORMAT.BC3_UNORM)
{
return(DDSCompressor.DecompressBC3(data, (int)Width, (int)Height, true));
}
else if (Format == TEX_FORMAT.BC4_UNORM)
{
return(DDSCompressor.DecompressBC4(data, (int)Width, (int)Height, false));
}
else if (Format == TEX_FORMAT.BC4_SNORM)
{
return(DDSCompressor.DecompressBC4(data, (int)Width, (int)Height, true));
}
else if (Format == TEX_FORMAT.BC5_UNORM)
{
return(DDSCompressor.DecompressBC5(data, (int)Width, (int)Height, false));
}
else
{
if (Runtime.UseOpenGL)
{
Runtime.OpenTKInitialized = true;
LoadOpenGLTexture();
return(RenderableTex.GLTextureToBitmap(RenderableTex));
}
}
}
catch
{
Forms.STErrorDialog.Show($"Texture failed to load!", "Texture [GetBitmap({MipLevel},{ArrayLevel})]", DebugInfo() + " \n" + ex);
}
return(null);
}
}
