public static void Main(string[] args)
{
if (args.Length < 4)
{
Console.WriteLine("Format: {path} {width} {height} {blockXSize} {blockYSize}");
}
else
{
string path = args[0];
int width = int.Parse(args[1]);
int height = int.Parse(args[2]);
int blockXSize = int.Parse(args[3]);
int blockYSize = int.Parse(args[4]);
byte[] data = File.ReadAllBytes(path);
using (DirectBitmap bitmap = new DirectBitmap(width, height))
{
AstcDecoder decoder = new AstcDecoder();
decoder.DecodeASTC(data, width, height, blockXSize, blockYSize, bitmap.Bits);
string dirPath = Path.GetDirectoryName(path);
string name = Path.GetFileNameWithoutExtension(path);
string newPath = Path.Combine(dirPath, name + "_decoded.png");
bitmap.Bitmap.Save(newPath, ImageFormat.Png);
}
Console.WriteLine("Finished");
}
Console.ReadKey();
}
public static Bitmap GetBitmap(Texture texture, int ArrayLevel = 0, int MipLevel = 0, int DepthLevel = 0)
{
int width = (int)Math.Max(1, texture.Width >> MipLevel);
int height = (int)Math.Max(1, texture.Height >> MipLevel);
TextureFormatInfo formatInfo = TextureFormatInfo.FormatTable[texture.Format];
Memory <byte> data = GetImageData(texture, ArrayLevel, MipLevel, DepthLevel);
if (AstcDecoder.CanHandle(texture))
{
if (AstcDecoder.TryDecodeToRgba8(data, (int)formatInfo.BlockWidth, (int)formatInfo.BlockHeight, width, height, 1, 1, out var decoded))
{
return(GetBitmapFromBytes(ConvertBgraToRgba(decoded), width, height, PixelFormat.Format32bppArgb));
}
}
else if (DDSDecoder.CanHandle(texture))
{
return(DDSDecoder.Decompress(data.Span, width, height, texture.Format));
}
else if (RgbaDecoder.CanHandle(texture))
{
return(RgbaDecoder.Decode(data.Span, width, height, texture.Format));
}
return(null);
}
/// <summary>
/// Converts texture data to a format and layout that is supported by the host GPU.
/// </summary>
/// <param name="data">Data to be converted</param>
/// <returns>Converted data</returns>
private ReadOnlySpan <byte> ConvertToHostCompatibleFormat(ReadOnlySpan <byte> data)
{
if (Info.IsLinear)
{
data = LayoutConverter.ConvertLinearStridedToLinear(
Info.Width,
Info.Height,
Info.FormatInfo.BlockWidth,
Info.FormatInfo.BlockHeight,
Info.Stride,
Info.FormatInfo.BytesPerPixel,
data);
}
else
{
data = LayoutConverter.ConvertBlockLinearToLinear(
Info.Width,
Info.Height,
_depth,
Info.Levels,
_layers,
Info.FormatInfo.BlockWidth,
Info.FormatInfo.BlockHeight,
Info.FormatInfo.BytesPerPixel,
Info.GobBlocksInY,
Info.GobBlocksInZ,
Info.GobBlocksInTileX,
_sizeInfo,
data);
}
if (!_context.Capabilities.SupportsAstcCompression && Info.FormatInfo.Format.IsAstc())
{
if (!AstcDecoder.TryDecodeToRgba8(
data.ToArray(),
Info.FormatInfo.BlockWidth,
Info.FormatInfo.BlockHeight,
Info.Width,
Info.Height,
_depth,
Info.Levels,
_layers,
out Span <byte> decoded))
{
string texInfo = $"{Info.Target} {Info.FormatInfo.Format} {Info.Width}x{Info.Height}x{Info.DepthOrLayers} levels {Info.Levels}";
Logger.Debug?.Print(LogClass.Gpu, $"Invalid ASTC texture at 0x{Info.Address:X} ({texInfo}).");
}
data = decoded;
}
return(data);
}
private static bool IsTextureDecodable(Texture texture)
{
if (AstcDecoder.CanHandle(texture))
{
return(true);
}
if (DDSDecoder.CanHandle(texture))
{
return(true);
}
if (RgbaDecoder.CanHandle(texture))
{
return(true);
}
return(false);
}
public static DirectBitmap ASTCTextureToBitmap(Texture2D texture, byte[] data)
{
int width = texture.Width;
int height = texture.Height;
int blockSize = texture.ASTCBlockSize();
DirectBitmap bitmap = new DirectBitmap(width, height);
try
{
AstcDecoder.DecodeASTC(data, width, height, blockSize, blockSize, bitmap.Bits);
return(bitmap);
}
catch
{
bitmap.Dispose();
throw;
}
}
/// <summary>
/// Converts texture data to a format and layout that is supported by the host GPU.
/// </summary>
/// <param name="data">Data to be converted</param>
/// <returns>Converted data</returns>
private ReadOnlySpan <byte> ConvertToHostCompatibleFormat(ReadOnlySpan <byte> data)
{
if (Info.IsLinear)
{
data = LayoutConverter.ConvertLinearStridedToLinear(
Info.Width,
Info.Height,
Info.FormatInfo.BlockWidth,
Info.FormatInfo.BlockHeight,
Info.Stride,
Info.FormatInfo.BytesPerPixel,
data);
}
else
{
data = LayoutConverter.ConvertBlockLinearToLinear(
Info.Width,
Info.Height,
_depth,
Info.Levels,
_layers,
Info.FormatInfo.BlockWidth,
Info.FormatInfo.BlockHeight,
Info.FormatInfo.BytesPerPixel,
Info.GobBlocksInY,
Info.GobBlocksInZ,
Info.GobBlocksInTileX,
_sizeInfo,
data);
}
// Handle compressed cases not supported by the host:
// - ASTC is usually not supported on desktop cards.
// - BC4/BC5 is not supported on 3D textures.
if (!_context.Capabilities.SupportsAstcCompression && Info.FormatInfo.Format.IsAstc())
{
if (!AstcDecoder.TryDecodeToRgba8(
data.ToArray(),
Info.FormatInfo.BlockWidth,
Info.FormatInfo.BlockHeight,
Info.Width,
Info.Height,
_depth,
Info.Levels,
_layers,
out Span <byte> decoded))
{
string texInfo = $"{Info.Target} {Info.FormatInfo.Format} {Info.Width}x{Info.Height}x{Info.DepthOrLayers} levels {Info.Levels}";
Logger.Debug?.Print(LogClass.Gpu, $"Invalid ASTC texture at 0x{Info.Address:X} ({texInfo}).");
}
data = decoded;
}
else if (Target == Target.Texture3D && Info.FormatInfo.Format.IsBc4())
{
data = BCnDecoder.DecodeBC4(data, Info.Width, Info.Height, _depth, Info.Levels, _layers, Info.FormatInfo.Format == Format.Bc4Snorm);
}
else if (Target == Target.Texture3D && Info.FormatInfo.Format.IsBc5())
{
data = BCnDecoder.DecodeBC5(data, Info.Width, Info.Height, _depth, Info.Levels, _layers, Info.FormatInfo.Format == Format.Bc5Snorm);
}
return(data);
}
public void Create(long key, byte[] data, GalImage image)
{
int handle = GL.GenTexture();
TextureTarget target = ImageUtils.GetTextureTarget(image.TextureTarget);
GL.BindTexture(target, handle);
const int level = 0; //TODO: Support mipmap textures.
const int border = 0;
_textureCache.AddOrUpdate(key, new ImageHandler(handle, image), (uint)data.Length);
if (ImageUtils.IsCompressed(image.Format) && !IsAstc(image.Format))
{
InternalFormat internalFmt = OglEnumConverter.GetCompressedImageFormat(image.Format);
switch (target)
{
case TextureTarget.Texture1D:
GL.CompressedTexImage1D(
target,
level,
internalFmt,
image.Width,
border,
data.Length,
data);
break;
case TextureTarget.Texture2D:
GL.CompressedTexImage2D(
target,
level,
internalFmt,
image.Width,
image.Height,
border,
data.Length,
data);
break;
case TextureTarget.Texture3D:
GL.CompressedTexImage3D(
target,
level,
internalFmt,
image.Width,
image.Height,
image.Depth,
border,
data.Length,
data);
break;
// Cube map arrays are just 2D texture arrays with 6 entries
// per cube map so we can handle them in the same way
case TextureTarget.TextureCubeMapArray:
case TextureTarget.Texture2DArray:
GL.CompressedTexImage3D(
target,
level,
internalFmt,
image.Width,
image.Height,
image.LayerCount,
border,
data.Length,
data);
break;
case TextureTarget.TextureCubeMap:
Span <byte> array = new Span <byte>(data);
int faceSize = ImageUtils.GetSize(image) / 6;
for (int Face = 0; Face < 6; Face++)
{
GL.CompressedTexImage2D(
TextureTarget.TextureCubeMapPositiveX + Face,
level,
internalFmt,
image.Width,
image.Height,
border,
faceSize,
array.Slice(Face * faceSize, faceSize).ToArray());
}
break;
default:
throw new NotImplementedException($"Unsupported texture target type: {target}");
}
}
else
{
//TODO: Use KHR_texture_compression_astc_hdr when available
if (IsAstc(image.Format))
{
int textureBlockWidth = ImageUtils.GetBlockWidth(image.Format);
int textureBlockHeight = ImageUtils.GetBlockHeight(image.Format);
int textureBlockDepth = ImageUtils.GetBlockDepth(image.Format);
data = AstcDecoder.DecodeToRgba8888(
data,
textureBlockWidth,
textureBlockHeight,
textureBlockDepth,
image.Width,
image.Height,
image.Depth);
image.Format = GalImageFormat.Rgba8 | (image.Format & GalImageFormat.TypeMask);
}
(PixelInternalFormat internalFmt,
PixelFormat format,
PixelType type) = OglEnumConverter.GetImageFormat(image.Format);
switch (target)
{
case TextureTarget.Texture1D:
GL.TexImage1D(
target,
level,
internalFmt,
image.Width,
border,
format,
type,
data);
break;
case TextureTarget.Texture2D:
GL.TexImage2D(
target,
level,
internalFmt,
image.Width,
image.Height,
border,
format,
type,
data);
break;
case TextureTarget.Texture3D:
GL.TexImage3D(
target,
level,
internalFmt,
image.Width,
image.Height,
image.Depth,
border,
format,
type,
data);
break;
// Cube map arrays are just 2D texture arrays with 6 entries
// per cube map so we can handle them in the same way
case TextureTarget.TextureCubeMapArray:
case TextureTarget.Texture2DArray:
GL.TexImage3D(
target,
level,
internalFmt,
image.Width,
image.Height,
image.LayerCount,
border,
format,
type,
data);
break;
case TextureTarget.TextureCubeMap:
Span <byte> array = new Span <byte>(data);
int faceSize = ImageUtils.GetSize(image) / 6;
for (int face = 0; face < 6; face++)
{
GL.TexImage2D(
TextureTarget.TextureCubeMapPositiveX + face,
level,
internalFmt,
image.Width,
image.Height,
border,
format,
type,
array.Slice(face * faceSize, faceSize).ToArray());
}
break;
default:
throw new NotImplementedException($"Unsupported texture target type: {target}");
}
}
}
/// <summary>
/// Synchronizes guest and host memory.
/// This will overwrite the texture data with the texture data on the guest memory, if a CPU
/// modification is detected.
/// Be aware that this can cause texture data written by the GPU to be lost, this is just a
/// one way copy (from CPU owned to GPU owned memory).
/// </summary>
public void SynchronizeMemory()
{
if (_sequenceNumber == _context.SequenceNumber && _hasData)
{
return;
}
_sequenceNumber = _context.SequenceNumber;
bool modified = _context.PhysicalMemory.GetModifiedRanges(Address, Size, ResourceName.Texture).Length != 0;
if (!modified && _hasData)
{
return;
}
ReadOnlySpan <byte> data = _context.PhysicalMemory.GetSpan(Address, Size);
if (Info.IsLinear)
{
data = LayoutConverter.ConvertLinearStridedToLinear(
Info.Width,
Info.Height,
Info.FormatInfo.BlockWidth,
Info.FormatInfo.BlockHeight,
Info.Stride,
Info.FormatInfo.BytesPerPixel,
data);
}
else
{
data = LayoutConverter.ConvertBlockLinearToLinear(
Info.Width,
Info.Height,
_depth,
Info.Levels,
_layers,
Info.FormatInfo.BlockWidth,
Info.FormatInfo.BlockHeight,
Info.FormatInfo.BytesPerPixel,
Info.GobBlocksInY,
Info.GobBlocksInZ,
Info.GobBlocksInTileX,
_sizeInfo,
data);
}
if (!_context.Capabilities.SupportsAstcCompression && Info.FormatInfo.Format.IsAstc())
{
if (!AstcDecoder.TryDecodeToRgba8(
data.ToArray(),
Info.FormatInfo.BlockWidth,
Info.FormatInfo.BlockHeight,
Info.Width,
Info.Height,
_depth,
Info.Levels,
out Span <byte> decoded))
{
string texInfo = $"{Info.Target} {Info.FormatInfo.Format} {Info.Width}x{Info.Height}x{Info.DepthOrLayers} levels {Info.Levels}";
Logger.PrintDebug(LogClass.Gpu, $"Invalid ASTC texture at 0x{Info.Address:X} ({texInfo}).");
}
data = decoded;
}
HostTexture.SetData(data);
_hasData = true;
}