/// <summary>
/// Compresses the specified image.
/// </summary>
/// <param name="image">The image.</param>
/// <param name="libraryData">The library data.</param>
/// <param name="request">The request.</param>
/// <exception cref="TexLibraryException">Compression failed</exception>
private void Compress(TexImage image, AtitcTextureLibraryData libraryData, CompressingRequest request)
{
Log.Info("Converting/Compressing with " + request.Format + " ...");
int totalSize = 0;
Texture[] texOut = new Texture[image.SubImageArray.Length];
int pitch, slice;
// Setting the new Texture array that will contained the compressed data
for (int i = 0; i < libraryData.Textures.Length; ++i)
{
Tools.ComputePitch(request.Format, libraryData.Textures[i].dwWidth, libraryData.Textures[i].dwHeight, out pitch, out slice);
texOut[i] = new Texture(libraryData.Textures[i].dwWidth, libraryData.Textures[i].dwHeight, pitch, RetrieveNativeFormat(request.Format), 0, IntPtr.Zero);
texOut[i].dwDataSize = Utilities.CalculateBufferSize(out texOut[i]);
totalSize += texOut[i].dwDataSize;
}
// Allocating memory to store the compressed data
image.Data = Marshal.AllocHGlobal(totalSize);
libraryData.Options = new CompressOptions(false, 0, 0, 0, false, false, 0, false, Speed.ATI_TC_Speed_Normal);
Result res;
int offset = 0;
// Compressing each sub image into the new allocated memory
for (int i = 0; i < libraryData.Textures.Length; ++i)
{
texOut[i].pData = new IntPtr(image.Data.ToInt64() + offset);
offset += texOut[i].dwDataSize;
res = Utilities.ConvertTexture(out libraryData.Textures[i], out texOut[i], out libraryData.Options);
if (res != Result.ATI_TC_OK)
{
Log.Error("Compression failed: " + res);
throw new TextureToolsException("Compression failed: " + res);
}
libraryData.Textures[i] = texOut[i];
}
// Deleting old uncompressed data
if (image.DisposingLibrary != null)
{
image.DisposingLibrary.Dispose(image);
}
// Assigning the new compressed data to the current instance of <see cref="LibraryData" />
libraryData.Data = image.Data;
// udpating various features
image.DataSize = totalSize;
image.RowPitch = libraryData.Textures[0].dwPitch;
image.Format = request.Format;
image.DisposingLibrary = this;
}
public static void DeleteData(out Texture pTexture)
{
atitcDeleteData(out pTexture);
}
/// <summary>
/// Decompresses the specified image.
/// </summary>
/// <param name="image">The image.</param>
/// <param name="libraryData">The library data.</param>
/// <param name="request">The decompression request</param>
/// <exception cref="TextureToolsException">Decompression failed</exception>
private void Decompress(TexImage image, AtitcTextureLibraryData libraryData, DecompressingRequest request)
{
Log.Info("Decompressing texture ...");
int totalSize = 0;
Texture[] texOut = new Texture[image.SubImageArray.Length];
int rowPitch, slicePitch;
// Setting the new Texture array that will contained the uncompressed data
for (int i = 0; i < libraryData.Textures.Length; ++i)
{
Tools.ComputePitch(request.DecompressedFormat, libraryData.Textures[i].dwWidth, libraryData.Textures[i].dwHeight, out rowPitch, out slicePitch);
texOut[i] = new Texture(libraryData.Textures[i].dwWidth, libraryData.Textures[i].dwHeight, libraryData.Textures[i].dwWidth * 4, Format.ATI_TC_FORMAT_ARGB_8888, 0, IntPtr.Zero);
texOut[i].dwDataSize = Utilities.CalculateBufferSize(out texOut[i]);
totalSize += texOut[i].dwDataSize;
}
// Allocating memory to store the uncompressed data
image.Data = Marshal.AllocHGlobal(totalSize);
libraryData.Options = new CompressOptions(false, 0, 0, 0, false, false, 0, false, Speed.ATI_TC_Speed_Normal);
Result res;
long offset = 0;
// Decompressing each sub image into the new allocated memory
for (int i = 0; i < libraryData.Textures.Length; ++i)
{
texOut[i].pData = new IntPtr(image.Data.ToInt64() + offset);
offset += texOut[i].dwDataSize;
res = Utilities.ConvertTexture(out libraryData.Textures[i], out texOut[i], out libraryData.Options);
if (res != Result.ATI_TC_OK)
{
Log.Error("Decompression failed: " + res);
throw new TextureToolsException("Decompression failed: " + res);
}
libraryData.Textures[i] = texOut[i];
}
// Deleting old compressed data
if (image.DisposingLibrary != null) image.DisposingLibrary.Dispose(image);
// udpating various features
libraryData.Data = image.Data;
image.DataSize = totalSize;
image.RowPitch = libraryData.Textures[0].dwPitch;
image.Format = request.DecompressedFormat;
image.DisposingLibrary = this;
}
public static Result ConvertTexture(out Texture pSourceTexture, out Texture pDestTexture, out CompressOptions pOptions)
{
return atitcConvertTexture(out pSourceTexture, out pDestTexture, out pOptions);
}
public static int CalculateBufferSize(out Texture pTexture)
{
return atitcCalculateBufferSize(out pTexture);
}
private extern static Result atitcConvertTexture(out Texture pSourceTexture, out Texture pDestTexture, out CompressOptions pOptions);
private extern static void atitcDeleteData(out Texture pTexture);
private extern static int atitcCalculateBufferSize(out Texture pTexture);
