public static byte[] DecodeBlock(byte[] Input, int Width, int Height, TEX_FORMAT Format)
{
if (Format == TEX_FORMAT.ETC1 || Format == TEX_FORMAT.ETC1_A4)
{
return(ETC1.ETC1Decompress(Input, Width, Height, Format == TEX_FORMAT.ETC1_A4));
}
byte[] Output = new byte[Width * Height * 4];
int Increment = FmtBPP[(int)ConvertToPICAFormat(Format)] / 8;
if (Increment == 0)
{
Increment = 1;
}
int IOffset = 0;
for (int TY = 0; TY < Height; TY += 8)
{
for (int TX = 0; TX < Width; TX += 8)
{
for (int Px = 0; Px < 64; Px++)
{
int X = SwizzleLUT[Px] & 7;
int Y = (SwizzleLUT[Px] - X) >> 3;
int OOffet = (TX + X + ((Height - 1 - (TY + Y)) * Width)) * 4;
switch (Format)
{
case TEX_FORMAT.R8G8_UNORM:
Output[OOffet + 0] = Input[IOffset + 3];
Output[OOffet + 1] = Input[IOffset + 2];
Output[OOffet + 2] = Input[IOffset + 1];
Output[OOffet + 3] = Input[IOffset + 0];
break;
case TEX_FORMAT.R8G8B8A8_UNORM:
Output[OOffet + 0] = Input[IOffset + 2];
Output[OOffet + 1] = Input[IOffset + 1];
Output[OOffet + 2] = Input[IOffset + 0];
Output[OOffet + 3] = 0xff;
break;
case TEX_FORMAT.B5G5R5A1_UNORM:
DecodeRGBA5551(Output, OOffet, GetUShort(Input, IOffset));
break;
case TEX_FORMAT.B5G6R5_UNORM:
DecodeRGB565(Output, OOffet, GetUShort(Input, IOffset));
break;
case TEX_FORMAT.B4G4R4A4_UNORM:
DecodeRGBA4(Output, OOffet, GetUShort(Input, IOffset));
break;
case TEX_FORMAT.LA8:
Output[OOffet + 0] = Input[IOffset + 1];
Output[OOffet + 1] = Input[IOffset + 1];
Output[OOffet + 2] = Input[IOffset + 1];
Output[OOffet + 3] = Input[IOffset + 0];
break;
case TEX_FORMAT.HIL08:
Output[OOffet + 0] = Input[IOffset + 1];
Output[OOffet + 1] = Input[IOffset + 0];
Output[OOffet + 2] = 0;
Output[OOffet + 3] = 0xff;
break;
case TEX_FORMAT.L8:
Output[OOffet + 0] = Input[IOffset];
Output[OOffet + 1] = Input[IOffset];
Output[OOffet + 2] = Input[IOffset];
Output[OOffet + 3] = 0xff;
break;
case TEX_FORMAT.A8_UNORM:
Output[OOffet + 0] = 0xff;
Output[OOffet + 1] = 0xff;
Output[OOffet + 2] = 0xff;
Output[OOffet + 3] = Input[IOffset];
break;
case TEX_FORMAT.LA4:
Output[OOffet + 0] = (byte)((Input[IOffset] >> 4) | (Input[IOffset] & 0xf0));
Output[OOffet + 1] = (byte)((Input[IOffset] >> 4) | (Input[IOffset] & 0xf0));
Output[OOffet + 2] = (byte)((Input[IOffset] >> 4) | (Input[IOffset] & 0xf0));
Output[OOffet + 3] = (byte)((Input[IOffset] << 4) | (Input[IOffset] & 0x0f));
break;
case TEX_FORMAT.L4:
int L = (Input[IOffset >> 1] >> ((IOffset & 1) << 2)) & 0xf;
Output[OOffet + 0] = (byte)((L << 4) | L);
Output[OOffet + 1] = (byte)((L << 4) | L);
Output[OOffet + 2] = (byte)((L << 4) | L);
Output[OOffet + 3] = 0xff;
break;
case TEX_FORMAT.A4:
int A = (Input[IOffset >> 1] >> ((IOffset & 1) << 2)) & 0xf;
Output[OOffet + 0] = 0xff;
Output[OOffet + 1] = 0xff;
Output[OOffet + 2] = 0xff;
Output[OOffet + 3] = (byte)((A << 4) | A);
break;
}
Output[OOffet + 0] = 0xff;
Output[OOffet + 1] = 0xff;
Output[OOffet + 2] = 0xff;
Output[OOffet + 3] = Input[IOffset];
IOffset += Increment;
}
}
}
return(Output);
}
/// <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);
}
}
