/// <summary>
/// Constructs a targa image from a targa image and raw data
/// </summary>
private Targa(TargaHeader header, PfimConfig config, byte[] data, int dataLen)
{
_config = config;
Header = header;
Data = data;
DataLen = dataLen;
}
protected override void Decode(Stream stream, PfimConfig config)
{
if (config.Decompress)
{
Data = DataDecode(stream, config);
}
else
{
var heightBlockAligned = HeightBlocks;
long totalSize = WidthBlocks * CompressedBytesPerBlock * heightBlockAligned;
for (int i = 1; i < Header.MipMapCount; i++)
{
var width = Math.Max((int)(Header.Width / Math.Pow(2, i)), 1);
var height = Math.Max((int)(Header.Height / Math.Pow(2, i)), 1);
var widthBlocks = CalcBlocks(width);
var heightBlocks = CalcBlocks(height);
totalSize += widthBlocks * heightBlocks * CompressedBytesPerBlock;
}
DataLen = (int)totalSize;
Data = config.Allocator.Rent((int)totalSize);
_compressed = true;
Util.Fill(stream, Data, DataLen, config.BufferSize);
}
}
protected override void Decode(Stream stream, PfimConfig config)
{
if (config.Decompress)
{
Data = DataDecode(stream, config);
}
else
{
var heightBlockAligned = HeightBlocks;
long totalSize = WidthBlocks * CompressedBytesPerBlock * heightBlockAligned;
var width = (int)Header.Width;
var height = (int)Header.Height;
for (int i = 1; i < Header.MipMapCount; i++)
{
width = (int)Math.Pow(2, Math.Floor(Math.Log(width - 1, 2)));
height = (int)Math.Pow(2, Math.Floor(Math.Log(height - 1, 2)));
var widthBlocks = Math.Max(DivSize, width) / DivSize;
var heightBlocks = Math.Max(DivSize, height) / DivSize;
totalSize += widthBlocks * heightBlocks * CompressedBytesPerBlock;
}
DataLen = (int)totalSize;
Data = config.Allocator.Rent((int)totalSize);
_compressed = true;
Util.Fill(stream, Data, DataLen, config.BufferSize);
}
}
private static Dds DecodeDds(Stream stream, PfimConfig config, DdsHeader header)
{
Dds dds;
switch (header.PixelFormat.FourCC)
{
case CompressionAlgorithm.D3DFMT_DXT1:
dds = new Dxt1Dds(header, config);
break;
case CompressionAlgorithm.D3DFMT_DXT2:
case CompressionAlgorithm.D3DFMT_DXT4:
throw new ArgumentException("Cannot support DXT2 or DXT4");
case CompressionAlgorithm.D3DFMT_DXT3:
dds = new Dxt3Dds(header, config);
break;
case CompressionAlgorithm.D3DFMT_DXT5:
dds = new Dxt5Dds(header, config);
break;
case CompressionAlgorithm.None:
dds = new UncompressedDds(header, config);
break;
case CompressionAlgorithm.DX10:
var header10 = new DdsHeaderDxt10(stream);
dds = header10.NewDecoder(header, config);
dds.Header10 = header10;
break;
case CompressionAlgorithm.ATI1:
case CompressionAlgorithm.BC4U:
dds = new Bc4Dds(header, config);
break;
case CompressionAlgorithm.BC4S:
dds = new Bc4sDds(header, config);
break;
case CompressionAlgorithm.ATI2:
case CompressionAlgorithm.BC5U:
dds = new Bc5Dds(header, config);
break;
case CompressionAlgorithm.BC5S:
dds = new Bc5sDds(header, config);
break;
default:
throw new ArgumentException($"FourCC: {header.PixelFormat.FourCC} not supported.");
}
dds.Decode(stream, config);
return(dds);
}
/// <summary>Fills data starting from the bottom left</summary>
public byte[] BottomLeft(Stream str, TargaHeader header, PfimConfig config)
{
var stride = Util.Stride(header.Width, header.PixelDepthBits);
var len = header.Height * stride;
var data = config.Allocator.Rent(len);
var trueStride = header.PixelDepthBytes * header.Width;
InnerBottomLeft(str, config, data, len, stride, trueStride);
return(data);
}
/// <summary>
/// Instantiate a targa header from a given stream. The stream will be parsed
/// </summary>
public TargaHeader(Stream str, PfimConfig config)
{
byte[] buf = new byte[MINIMUM_SIZE];
if (str.Read(buf, 0, MINIMUM_SIZE) != MINIMUM_SIZE)
{
throw new ArgumentException("Stream doesn't have enough data for a .tga", nameof(str));
}
DecodeTargaHeader(str, buf, MINIMUM_SIZE, config);
}
private static void InnerBottomLeft(Stream str, PfimConfig config, byte[] data, int dataLen, int stride, int trueStride)
{
if (str is MemoryStream s && s.TryGetBuffer(out var arr))
{
int dataIndex = dataLen - stride;
for (int i = 0; dataIndex > 0; i++, dataIndex -= stride)
{
Buffer.BlockCopy(arr.Array, (int)(s.Position + i * trueStride), data, dataIndex, trueStride);
}
}
private static void InnerBottomLeft(Stream str, PfimConfig config, byte[] data, int dataLen, int stride, int rowBits)
{
if (str is MemoryStream s && s.TryGetBuffer(out var arr))
{
int dataIndex = dataLen - stride;
int rowBytes = rowBits / 8;
int totalRows = dataLen / rowBytes;
for (int i = 0; i < totalRows; i++, dataIndex -= stride)
{
Buffer.BlockCopy(arr.Array, (int)(s.Position + i * rowBytes), data, dataIndex, rowBytes);
}
}
/// <summary>Decode data into raw rgb format</summary>
private byte[] DataDecode(Stream str, PfimConfig config)
{
var imageInfo = ImageInfo();
_format = imageInfo.Format;
var len = CalcSize(imageInfo);
DataLen = len;
byte[] data = config.Allocator.Rent(len);
var stride = Util.Stride((int)Header.Width, BitsPerPixel);
if (Header.Width * BytesPerPixel == stride)
{
Util.Fill(str, data, len, config.BufferSize);
}
else
{
Util.InnerFillUnaligned(str, data, len, (int)Header.Width * BytesPerPixel, stride, config.BufferSize);
}
// Swap the R and B channels
if (imageInfo.Swap)
{
switch (imageInfo.Format)
{
case ImageFormat.Rgba32:
for (int i = 0; i < len; i += 4)
{
byte temp = data[i];
data[i] = data[i + 2];
data[i + 2] = temp;
}
break;
case ImageFormat.Rgba16:
for (int i = 0; i < len; i += 2)
{
byte temp = (byte)(data[i] & 0xF);
data[i] = (byte)((data[i] & 0xF0) + (data[i + 1] & 0XF));
data[i + 1] = (byte)((data[i + 1] & 0xF0) + temp);
}
break;
default:
throw new Exception($"Do not know how to swap {imageInfo.Format}");
}
}
return(data);
}
/// <summary>
/// Create image from stream. Pfim will try to detect the format based on several leading bytes
/// </summary>
public static IImage FromStream(Stream stream, PfimConfig config)
{
byte[] magic = new byte[4];
if (stream.Read(magic, 0, 4) != 4)
{
throw new ArgumentException("stream must contain magic header", nameof(stream));
}
if (magic[0] == 0x44 && magic[1] == 0x44 && magic[2] == 0x53 && magic[3] == 0x20)
{
return(Dds.CreateSkipMagic(stream, config));
}
throw new Exception("This is not a DDS image file");
}
/// <summary>
/// Create image from stream. Pfim will try to detect the format based on several leading bytes
/// </summary>
public static IImage FromStream(Stream stream, PfimConfig config)
{
byte[] magic = new byte[4];
if (stream.Read(magic, 0, 4) != 4)
{
throw new ArgumentException("stream must contain magic header", nameof(stream));
}
if (magic[0] == 0x44 && magic[1] == 0x44 && magic[2] == 0x53 && magic[3] == 0x20)
{
return(Dds.CreateSkipMagic(stream, config));
}
return(Targa.CreateWithPartialHeader(stream, config, magic));
}
/// <summary>Constructs an image from a given file</summary>
public static IImage FromFile(string path, PfimConfig config)
{
if (String.IsNullOrEmpty(path))
{
throw new ArgumentNullException(nameof(path));
}
if (!File.Exists(path))
{
throw new FileNotFoundException($"Image does not exist: {Path.GetFullPath(path)}", path);
}
using (var fs = new FileStream(path, FileMode.Open, FileAccess.Read, FileShare.ReadWrite, config.BufferSize))
{
return(FromStream(fs, config));
}
}
private static Targa DecodeTarga(Stream str, PfimConfig config, TargaHeader header)
{
var targa = (header.IsCompressed)
? (IDecodeTarga)(new CompressedTarga())
: new UncompressedTarga();
byte[] data;
switch (header.Orientation)
{
case TargaHeader.TargaOrientation.BottomLeft:
data = targa.BottomLeft(str, header, config);
break;
case TargaHeader.TargaOrientation.BottomRight:
data = targa.BottomRight(str, header, config);
break;
case TargaHeader.TargaOrientation.TopRight:
data = targa.TopRight(str, header, config);
break;
case TargaHeader.TargaOrientation.TopLeft:
data = targa.TopLeft(str, header, config);
break;
default:
throw new Exception("Targa orientation not recognized");
}
var stride = Util.Stride(header.Width, header.PixelDepthBits);
var len = header.Height * stride;
var result = new Targa(header, config, data, len);
if (config.ApplyColorMap)
{
result.ApplyColorMap();
}
return(result);
}
/// <summary>
/// Instantiates a direct draw surface image from a header, the data,
/// and additional info.
/// </summary>
protected Dds(DdsHeader header, PfimConfig config)
{
Header = header;
_config = config;
}
protected abstract void Decode(Stream stream, PfimConfig config);
internal Dds NewDecoder(DdsHeader header, PfimConfig config)
{
switch (DxgiFormat)
{
case DxgiFormat.BC1_TYPELESS:
case DxgiFormat.BC1_UNORM_SRGB:
case DxgiFormat.BC1_UNORM:
return(new Dxt1Dds(header, config));
case DxgiFormat.BC2_TYPELESS:
case DxgiFormat.BC2_UNORM:
case DxgiFormat.BC2_UNORM_SRGB:
return(new Dxt3Dds(header, config));
case DxgiFormat.BC3_TYPELESS:
case DxgiFormat.BC3_UNORM:
case DxgiFormat.BC3_UNORM_SRGB:
return(new Dxt5Dds(header, config));
case DxgiFormat.BC4_TYPELESS:
case DxgiFormat.BC4_UNORM:
return(new Bc4Dds(header, config));
case DxgiFormat.BC4_SNORM:
return(new Bc4sDds(header, config));
case DxgiFormat.BC5_TYPELESS:
case DxgiFormat.BC5_UNORM:
return(new Bc5Dds(header, config));
case DxgiFormat.BC5_SNORM:
return(new Bc5sDds(header, config));
case DxgiFormat.BC6H_TYPELESS:
case DxgiFormat.BC6H_UF16:
case DxgiFormat.BC6H_SF16:
return(new Bc6hDds(header, config));
case DxgiFormat.BC7_TYPELESS:
case DxgiFormat.BC7_UNORM:
case DxgiFormat.BC7_UNORM_SRGB:
return(new Bc7Dds(header, config));
case DxgiFormat.R8G8B8A8_TYPELESS:
case DxgiFormat.R8G8B8A8_UNORM:
case DxgiFormat.R8G8B8A8_UNORM_SRGB:
case DxgiFormat.R8G8B8A8_UINT:
case DxgiFormat.R8G8B8A8_SNORM:
case DxgiFormat.R8G8B8A8_SINT:
return(new UncompressedDds(header, config, 32, true));
case DxgiFormat.B8G8R8A8_TYPELESS:
case DxgiFormat.B8G8R8A8_UNORM:
case DxgiFormat.B8G8R8A8_UNORM_SRGB:
return(new UncompressedDds(header, config, 32, false));
case DxgiFormat.UNKNOWN:
case DxgiFormat.R32G32B32A32_TYPELESS:
case DxgiFormat.R32G32B32A32_FLOAT:
case DxgiFormat.R32G32B32A32_UINT:
case DxgiFormat.R32G32B32A32_SINT:
case DxgiFormat.R32G32B32_TYPELESS:
case DxgiFormat.R32G32B32_FLOAT:
case DxgiFormat.R32G32B32_UINT:
case DxgiFormat.R32G32B32_SINT:
case DxgiFormat.R16G16B16A16_TYPELESS:
case DxgiFormat.R16G16B16A16_FLOAT:
case DxgiFormat.R16G16B16A16_UNORM:
case DxgiFormat.R16G16B16A16_UINT:
case DxgiFormat.R16G16B16A16_SNORM:
case DxgiFormat.R16G16B16A16_SINT:
case DxgiFormat.R32G32_TYPELESS:
case DxgiFormat.R32G32_FLOAT:
case DxgiFormat.R32G32_UINT:
case DxgiFormat.R32G32_SINT:
case DxgiFormat.R32G8X24_TYPELESS:
case DxgiFormat.D32_FLOAT_S8X24_UINT:
case DxgiFormat.R32_FLOAT_X8X24_TYPELESS:
case DxgiFormat.X32_TYPELESS_G8X24_UINT:
case DxgiFormat.R10G10B10A2_TYPELESS:
case DxgiFormat.R10G10B10A2_UNORM:
case DxgiFormat.R10G10B10A2_UINT:
case DxgiFormat.R11G11B10_FLOAT:
case DxgiFormat.R16G16_TYPELESS:
case DxgiFormat.R16G16_FLOAT:
case DxgiFormat.R16G16_UNORM:
case DxgiFormat.R16G16_UINT:
case DxgiFormat.R16G16_SNORM:
case DxgiFormat.R16G16_SINT:
case DxgiFormat.R32_TYPELESS:
case DxgiFormat.D32_FLOAT:
case DxgiFormat.R32_FLOAT:
case DxgiFormat.R32_UINT:
case DxgiFormat.R32_SINT:
case DxgiFormat.R24G8_TYPELESS:
case DxgiFormat.D24_UNORM_S8_UINT:
case DxgiFormat.R24_UNORM_X8_TYPELESS:
case DxgiFormat.X24_TYPELESS_G8_UINT:
case DxgiFormat.R8G8_TYPELESS:
case DxgiFormat.R8G8_UNORM:
case DxgiFormat.R8G8_UINT:
case DxgiFormat.R8G8_SNORM:
case DxgiFormat.R8G8_SINT:
case DxgiFormat.R16_TYPELESS:
case DxgiFormat.R16_FLOAT:
case DxgiFormat.D16_UNORM:
case DxgiFormat.R16_UNORM:
case DxgiFormat.R16_UINT:
case DxgiFormat.R16_SNORM:
case DxgiFormat.R16_SINT:
case DxgiFormat.R8_TYPELESS:
case DxgiFormat.R8_UNORM:
case DxgiFormat.R8_UINT:
case DxgiFormat.R8_SNORM:
case DxgiFormat.R8_SINT:
case DxgiFormat.A8_UNORM:
case DxgiFormat.R1_UNORM:
case DxgiFormat.R9G9B9E5_SHAREDEXP:
case DxgiFormat.R8G8_B8G8_UNORM:
case DxgiFormat.G8R8_G8B8_UNORM:
case DxgiFormat.B8G8R8X8_UNORM:
case DxgiFormat.R10G10B10_XR_BIAS_A2_UNORM:
case DxgiFormat.B8G8R8X8_TYPELESS:
case DxgiFormat.B8G8R8X8_UNORM_SRGB:
case DxgiFormat.NV12:
case DxgiFormat.P010:
case DxgiFormat.P016:
case DxgiFormat.OPAQUE_420:
case DxgiFormat.YUY2:
case DxgiFormat.Y210:
case DxgiFormat.Y216:
case DxgiFormat.NV11:
case DxgiFormat.AI44:
case DxgiFormat.IA44:
case DxgiFormat.P8:
case DxgiFormat.A8P8:
case DxgiFormat.B4G4R4A4_UNORM:
case DxgiFormat.P208:
case DxgiFormat.V208:
case DxgiFormat.V408:
default:
throw new ArgumentOutOfRangeException();
}
}
/// <summary>Decode data into raw rgb format</summary>
public byte[] DataDecode(Stream stream, PfimConfig config)
{
// If we are decoding in memory data, decode stream from that instead of
// an intermediate buffer
if (stream is MemoryStream s && s.TryGetBuffer(out var arr))
{
return(InMemoryDecode(arr.Array, (int)s.Position));
}
DataLen = HeightBlocks * DivSize * DeflatedStrideBytes;
var totalLen = AllocateMipMaps();
byte[] data = Config.Allocator.Rent(totalLen);
var pixelsLeft = totalLen;
int dataIndex = 0;
int imageIndex = 0;
int divSize = DivSize;
int stride = DeflatedStrideBytes;
int blocksPerStride = WidthBlocks;
int indexPixelsLeft = HeightBlocks * DivSize * stride;
var stridePixels = StridePixels;
int bytesPerStride = BytesPerStride;
int bufferSize;
byte[] streamBuffer = config.Allocator.Rent(config.BufferSize);
try
{
do
{
int workingSize;
bufferSize = workingSize = stream.Read(streamBuffer, 0, config.BufferSize);
int bIndex = 0;
while (workingSize > 0 && indexPixelsLeft > 0)
{
// If there is not enough of the buffer to fill the next
// set of 16 square pixels Get the next buffer
if (workingSize < bytesPerStride)
{
bufferSize = workingSize = Util.Translate(stream, streamBuffer, config.BufferSize, bIndex);
bIndex = 0;
}
var origDataIndex = dataIndex;
// Now that we have enough pixels to fill a stride (and
// this includes the normally 4 pixels below the stride)
for (uint i = 0; i < blocksPerStride; i++)
{
bIndex = Decode(streamBuffer, data, bIndex, (uint)dataIndex, (uint)stridePixels);
// Advance to the next block, which is (pixel depth *
// divSize) bytes away
dataIndex += divSize * PixelDepthBytes;
}
// Each decoded block is divSize by divSize so pixels left
// is Width * multiplied by block height
workingSize -= bytesPerStride;
var filled = stride * divSize;
pixelsLeft -= filled;
indexPixelsLeft -= filled;
// Jump down to the block that is exactly (divSize - 1)
// below the current row we are on
dataIndex = origDataIndex + filled;
if (indexPixelsLeft <= 0 && imageIndex < MipMaps.Length)
{
var mip = MipMaps[imageIndex];
var widthBlocks = CalcBlocks(mip.Width);
var heightBlocks = CalcBlocks(mip.Height);
stridePixels = widthBlocks * DivSize;
stride = stridePixels * PixelDepthBytes;
blocksPerStride = widthBlocks;
indexPixelsLeft = heightBlocks * DivSize * stride;
bytesPerStride = widthBlocks * CompressedBytesPerBlock;
imageIndex++;
}
}
} while (bufferSize != 0 && pixelsLeft > 0);
return(data);
}
finally
{
config.Allocator.Return(streamBuffer);
}
}
/// <summary>Fills data starting from the bottom left</summary>
public byte[] BottomLeft(Stream str, TargaHeader header, PfimConfig config)
{
var stride = Util.Stride(header.Width, header.PixelDepthBits);
var dataLen = header.Height * stride;
var data = config.Allocator.Rent(dataLen);
if (str is MemoryStream s && s.TryGetBuffer(out var arr))
{
return(FastPass(data, arr, header, stride, s.Position));
}
int dataIndex = dataLen - stride;
int bytesPerPixel = header.PixelDepthBytes;
int fileBufferIndex = 0;
// Calculate the maximum number of bytes potentially needed from the buffer.
// If our buffer doesn't have enough to decode the maximum number of bytes,
// fetch another batch of bytes from the stream.
int maxRead = bytesPerPixel * 128 + 1;
byte[] filebuffer = config.Allocator.Rent(config.BufferSize);
try
{
int workingSize = str.Read(filebuffer, 0, config.BufferSize);
while (dataIndex >= 0)
{
int colIndex = 0;
do
{
if (config.BufferSize - fileBufferIndex < maxRead && workingSize == config.BufferSize)
{
workingSize = Util.Translate(str, filebuffer, config.BufferSize, fileBufferIndex);
fileBufferIndex = 0;
}
bool isRunLength = (filebuffer[fileBufferIndex] & 128) != 0;
int count = isRunLength ? bytesPerPixel + 1 : filebuffer[fileBufferIndex] + 1;
// If the first bit is on, it means that the next packet is run length encoded
if (isRunLength)
{
RunLength(data, filebuffer, dataIndex, fileBufferIndex, bytesPerPixel);
dataIndex += (filebuffer[fileBufferIndex] - 127) * bytesPerPixel;
colIndex += filebuffer[fileBufferIndex] - 127;
fileBufferIndex += count;
}
else
{
int bytcount = count * bytesPerPixel;
fileBufferIndex++;
Buffer.BlockCopy(filebuffer, fileBufferIndex, data, dataIndex, bytcount);
fileBufferIndex += bytcount;
colIndex += count;
dataIndex += bytcount;
}
} while (colIndex < header.Width);
dataIndex -= bytesPerPixel * header.Width + stride;
}
return(data);
}
finally
{
config.Allocator.Return(filebuffer);
}
}
internal UncompressedDds(DdsHeader header, PfimConfig config) : base(header, config)
{
}
/// <summary>
/// Same as a regular create except assumes that the magic number has already been consumed
/// </summary>
internal static IImage CreateSkipMagic(Stream stream, PfimConfig config)
{
DdsHeader header = new DdsHeader(stream, true);
return(DecodeDds(stream, config, header));
}
internal static IImage CreateWithPartialHeader(Stream str, PfimConfig config, byte[] magic)
{
var header = new TargaHeader(str, magic, 4, config);
return(DecodeTarga(str, config, header));
}
private void DecodeTargaHeader(Stream str, byte[] partial, int partialLen, PfimConfig config)
{
byte[] buf;
if (partialLen == MINIMUM_SIZE)
{
buf = partial;
}
else if (partialLen > MINIMUM_SIZE)
{
throw new ArgumentException($"Partial header can't exceed {MINIMUM_SIZE} bytes");
}
else
{
buf = new byte[MINIMUM_SIZE];
var left = MINIMUM_SIZE - partialLen;
for (int i = 0; i < partialLen; i++)
{
buf[i] = partial[i];
}
if (str.Read(buf, partialLen, left) != left)
{
throw new ArgumentException("Stream doesn't have enough data for a .tga", nameof(str));
}
}
IDLength = buf[0];
HasColorMap = buf[1] == 1;
ImageType = (TargaImageType)buf[2];
if (!Enum.IsDefined(typeof(TargaImageType), ImageType))
{
throw new ArgumentException("Detected invalid targa image");
}
ColorMapOrigin = BitConverter.ToInt16(buf, 3);
ColorMapLength = BitConverter.ToInt16(buf, 5);
ColorMapDepthBits = buf[7];
XOrigin = BitConverter.ToInt16(buf, 8);
YOrigin = BitConverter.ToInt16(buf, 10);
Width = BitConverter.ToInt16(buf, 12);
Height = BitConverter.ToInt16(buf, 14);
PixelDepthBits = buf[16];
// Extract the bits in place 4 and 5 for orientation
Orientation = (TargaOrientation)((buf[17] >> 4) & 3);
if (IDLength != 0)
{
var idBuf = new byte[IDLength];
var amount = str.Read(idBuf, 0, IDLength);
ImageId = Encoding.Unicode.GetString(idBuf, 0, amount);
}
if (HasColorMap)
{
if (ColorMapOrigin > ColorMapLength)
{
throw new ArgumentException("Color map origin was detected to exceed color map length");
}
var mapBytes = ColorMapDepthBytes;
ColorMap = new byte[ColorMapLength * mapBytes];
str.Read(ColorMap, ColorMapOrigin * mapBytes, (ColorMapLength - ColorMapOrigin) * mapBytes);
}
}
internal TargaHeader(Stream str, byte[] partial, int partialLen, PfimConfig config)
{
DecodeTargaHeader(str, partial, partialLen, config);
}
public Dxt5Dds(DdsHeader header, PfimConfig config) : base(header, config)
{
}
protected override void Decode(Stream stream, PfimConfig config)
{
Data = DataDecode(stream, config);
}
public static Dds Create(byte[] data, PfimConfig config)
{
return(Create(Util.CreateExposed(data), config));
}
/// <summary>Create a direct draw image from a stream</summary>
public static Dds Create(Stream stream, PfimConfig config)
{
DdsHeader header = new DdsHeader(stream);
return(DecodeDds(stream, config, header));
}
protected CompressedDds(DdsHeader header, PfimConfig config) : base(header, config)
{
}
/// <summary>
/// Creates a targa image from a given stream. The type of targa is determined from the
/// targa header, which is assumed to be a part of the stream
/// </summary>
/// <param name="str">Stream to read the targa image from</param>
/// <returns>A targa image</returns>
public static Targa Create(Stream str, PfimConfig config)
{
var header = new TargaHeader(str, config);
return(DecodeTarga(str, config, header));
}
internal UncompressedDds(DdsHeader header, PfimConfig config, uint bitsPerPixel, bool rgbSwapped) : base(header, config)
{
_bitsPerPixel = bitsPerPixel;
_rgbSwapped = rgbSwapped;
}