public static unsafe byte[] CompressBlock(Byte[] data, int width, int height, DDS_DXGI_FORMAT format, float AlphaRef = 0.5f, bool fastCompress = false)
{
long inputRowPitch = width * 4;
long inputSlicePitch = width * height * 4;
if (data.Length == inputSlicePitch)
{
byte *buf;
buf = (byte *)Marshal.AllocHGlobal((int)inputSlicePitch);
Marshal.Copy(data, 0, (IntPtr)buf, (int)inputSlicePitch);
DirectXTexNet.Image inputImage = new DirectXTexNet.Image(
width, height, DXGI_FORMAT.R8G8B8A8_UNORM, inputRowPitch,
inputSlicePitch, (IntPtr)buf, null);
TexMetadata texMetadata = new TexMetadata(width, height, 1, 1, 1, 0, 0,
DXGI_FORMAT.R8G8B8A8_UNORM, TEX_DIMENSION.TEXTURE2D);
ScratchImage scratchImage = TexHelper.Instance.InitializeTemporary(
new DirectXTexNet.Image[] { inputImage }, texMetadata, null);
var compFlags = TEX_COMPRESS_FLAGS.DEFAULT;
// compFlags |= TEX_COMPRESS_FLAGS.PARALLEL;
if (format == DDS_DXGI_FORMAT.DXGI_FORMAT_BC7_UNORM ||
format == DDS_DXGI_FORMAT.DXGI_FORMAT_BC7_UNORM_SRGB ||
format == DDS_DXGI_FORMAT.DXGI_FORMAT_BC7_TYPELESS)
{
if (fastCompress)
{
compFlags |= TEX_COMPRESS_FLAGS.BC7_QUICK;
}
}
if (format == DDS_DXGI_FORMAT.DXGI_FORMAT_BC1_UNORM_SRGB ||
format == DDS_DXGI_FORMAT.DXGI_FORMAT_BC1_UNORM_SRGB ||
format == DDS_DXGI_FORMAT.DXGI_FORMAT_BC2_UNORM_SRGB ||
format == DDS_DXGI_FORMAT.DXGI_FORMAT_BC3_UNORM_SRGB ||
format == DDS_DXGI_FORMAT.DXGI_FORMAT_BC7_UNORM_SRGB)
{
compFlags |= TEX_COMPRESS_FLAGS.SRGB;
}
using (var comp = scratchImage.Compress((DXGI_FORMAT)format, compFlags, 0.5f))
{
TexHelper.Instance.ComputePitch((DXGI_FORMAT)format, width, height, out long outRowPitch, out long outSlicePitch, CP_FLAGS.NONE);
byte[] result = new byte[outSlicePitch];
Marshal.Copy(comp.GetImage(0).Pixels, result, 0, result.Length);
inputImage = null;
scratchImage.Dispose();
return(result);
}
}
return(null);
}
public static unsafe byte[] DecompressBlock(Byte[] data, int width, int height, DDS.DXGI_FORMAT format)
{
Console.WriteLine(format);
Console.WriteLine(data.Length);
Console.WriteLine(width);
Console.WriteLine(height);
long inputRowPitch;
long inputSlicePitch;
TexHelper.Instance.ComputePitch((DXGI_FORMAT)format, width, height, out inputRowPitch, out inputSlicePitch, CP_FLAGS.NONE);
DXGI_FORMAT FormatDecompressed;
if (format.ToString().Contains("SRGB"))
{
FormatDecompressed = DXGI_FORMAT.R8G8B8A8_UNORM_SRGB;
}
else
{
FormatDecompressed = DXGI_FORMAT.R8G8B8A8_UNORM;
}
if (data.Length == inputSlicePitch)
{
byte *buf;
buf = (byte *)Marshal.AllocHGlobal((int)inputSlicePitch);
Marshal.Copy(data, 0, (IntPtr)buf, (int)inputSlicePitch);
DirectXTexNet.Image inputImage = new DirectXTexNet.Image(
width, height, (DXGI_FORMAT)format, inputRowPitch,
inputSlicePitch, (IntPtr)buf, null);
TexMetadata texMetadata = new TexMetadata(width, height, 1, 1, 1, 0, 0,
(DXGI_FORMAT)format, TEX_DIMENSION.TEXTURE2D);
ScratchImage scratchImage = TexHelper.Instance.InitializeTemporary(
new DirectXTexNet.Image[] { inputImage }, texMetadata, null);
using (var decomp = scratchImage.Decompress(0, FormatDecompressed))
{
byte[] result = new byte[4 * width * height];
Marshal.Copy(decomp.GetImage(0).Pixels, result, 0, result.Length);
inputImage = null;
scratchImage.Dispose();
return(result);
}
}
return(null);
}
public static unsafe byte[] Convert(Byte[] data, int width, int height, DXGI_FORMAT inputFormat, DXGI_FORMAT outputFormat)
{
long inputRowPitch;
long inputSlicePitch;
TexHelper.Instance.ComputePitch(inputFormat, width, height, out inputRowPitch, out inputSlicePitch, CP_FLAGS.NONE);
if (data.Length == inputSlicePitch)
{
byte *buf;
buf = (byte *)Marshal.AllocHGlobal((int)inputSlicePitch);
Marshal.Copy(data, 0, (IntPtr)buf, (int)inputSlicePitch);
DirectXTexNet.Image inputImage = new DirectXTexNet.Image(
width, height, inputFormat, inputRowPitch,
inputSlicePitch, (IntPtr)buf, null);
TexMetadata texMetadata = new TexMetadata(width, height, 1, 1, 1, 0, 0,
inputFormat, TEX_DIMENSION.TEXTURE2D);
ScratchImage scratchImage = TexHelper.Instance.InitializeTemporary(
new DirectXTexNet.Image[] { inputImage }, texMetadata, null);
var convFlags = TEX_FILTER_FLAGS.DEFAULT;
if (inputFormat == DXGI_FORMAT.B8G8R8A8_UNORM_SRGB ||
inputFormat == DXGI_FORMAT.B8G8R8X8_UNORM_SRGB ||
inputFormat == DXGI_FORMAT.R8G8B8A8_UNORM_SRGB)
{
convFlags |= TEX_FILTER_FLAGS.SRGB;
}
using (var decomp = scratchImage.Convert(0, outputFormat, convFlags, 0.5f))
{
long outRowPitch;
long outSlicePitch;
TexHelper.Instance.ComputePitch(outputFormat, width, height, out outRowPitch, out outSlicePitch, CP_FLAGS.NONE);
byte[] result = new byte[outSlicePitch];
Marshal.Copy(decomp.GetImage(0).Pixels, result, 0, result.Length);
inputImage = null;
scratchImage.Dispose();
return(result);
}
}
return(null);
}
