private byte[][] ddsFile_CreateBuffer(DdsFile ddsFile, out HaloBitmap.BitmapFormat format, ref int lodLevels, out bool linear, out bool swizzle, out bool deleteLods)
{
//Prepare
format = HaloBitmap.BitmapFormat.Null;
deleteLods = true;
swizzle = false;
linear = false;
//Get Format
if (ddsFile.PixelFormatFlags.HasFlag(DirectDrawPixelFormatFlags.FourCC)) //Check for FourCC flag...
{
switch (ddsFile.FourCC) //Check FourCC string
{
case "DXT1": format = HaloBitmap.BitmapFormat.Dxt1; break;
case "DXT2":
case "DXT3": format = HaloBitmap.BitmapFormat.Dxt3; break;
case "DXT4":
case "DXT5": format = HaloBitmap.BitmapFormat.Dxt5; break;
case "ATI2": format = HaloBitmap.BitmapFormat.P8Bump; break;
}
switch (ddsFile.DwordFourCC) //Check FourCC int
{
case 116: format = HaloBitmap.BitmapFormat.Argbfp32; break;
}
}
else
{
if (ddsFile.PixelFormatFlags.HasFlag(DirectDrawPixelFormatFlags.Argb)) //ARGB
{
switch (ddsFile.RgbBitCount)
{
case 16: //16bpp
if (ddsFile.AlphaBitmask == 0x8000)
{
format = HaloBitmap.BitmapFormat.A1r5g5b5; //A1R5G5B5
}
else
{
format = HaloBitmap.BitmapFormat.A4r4g4b4; //A4R4G4B4
}
break;
case 32: format = HaloBitmap.BitmapFormat.A8r8g8b8; break; //A8R8G8B8
}
}
else if (ddsFile.PixelFormatFlags.HasFlag(DirectDrawPixelFormatFlags.Rgb)) //RGB
{
switch (ddsFile.RgbBitCount)
{
case 16: format = HaloBitmap.BitmapFormat.R5g6b5; break; //R5G6B5
case 32: format = HaloBitmap.BitmapFormat.X8r8g8b8; break; //X8R8G8B8
}
}
else if (ddsFile.PixelFormatFlags.HasFlag(DirectDrawPixelFormatFlags.AlphaLuminance)) //AL
{
switch (ddsFile.RgbBitCount)
{
case 16: format = HaloBitmap.BitmapFormat.A8y8; break; //A8L8
}
}
else if (ddsFile.PixelFormatFlags.HasFlag(DirectDrawPixelFormatFlags.Luminance)) //L
{
switch (ddsFile.RgbBitCount)
{
case 8: format = HaloBitmap.BitmapFormat.Y8; break; //L8
}
}
else if (ddsFile.PixelFormatFlags.HasFlag(DirectDrawPixelFormatFlags.Argb)) //A
{
switch (ddsFile.RgbBitCount)
{
case 8: format = HaloBitmap.BitmapFormat.A8; break; //A8
}
}
else if (ddsFile.PixelFormatFlags.HasFlag(DirectDrawPixelFormatFlags.VU)) //VU
{
switch (ddsFile.RgbBitCount)
{
case 16: format = HaloBitmap.BitmapFormat.V8u8; break; //V8U8
}
}
}
//Check
if (format == HaloBitmap.BitmapFormat.Null)
{
switch (ddsFile.RgbBitCount)
{
case 8: format = HaloBitmap.BitmapFormat.Y8; break;
case 16: format = HaloBitmap.BitmapFormat.A8y8; break;
case 32: format = HaloBitmap.BitmapFormat.A8r8g8b8; break;
default: throw new FormatException("DirectDraw Surface texture format is not supported.");
}
}
//Confirm
using (TextureImportOptionsDialog texDlg = new TextureImportOptionsDialog())
{
//Setup
int mapCount = 1 + (int)ddsFile.MipmapCount;
texDlg.OriginalHeight = (int)ddsFile.Height;
texDlg.OriginalWidth = (int)ddsFile.Width;
texDlg.MaxLodLevels = mapCount;
texDlg.LodLevels = lodLevels;
texDlg.Format = format;
//Show
if (texDlg.ShowDialog(this) == DialogResult.OK)
{
lodLevels = texDlg.LodLevels;
format = texDlg.Format;
deleteLods = texDlg.DeleteLods;
swizzle = texDlg.Swizzle;
}
else
{
return(null);
}
}
//Prepare buffers
byte[][] buffers = new byte[lodLevels][];
//Get BPP
uint bitsPerPixel = 0;
if (ddsFile.DefinitionFlags.HasFlag(DirectDrawSurfaceDefinitionFlags.LinearSize))
{
bitsPerPixel = ddsFile.PitchOrLinearSize * 8u / ddsFile.Width / ddsFile.Height;
}
else
{
bitsPerPixel = ddsFile.RgbBitCount;
}
//Get Data Length
long length = 0; uint mipWidth = ddsFile.Width, mipHeight = ddsFile.Height;
for (int j = 0; j <= ddsFile.MipmapCount; j++)
{
length += mipWidth * mipHeight * bitsPerPixel / 8;
mipWidth /= 2; mipHeight /= 2;
}
//Get Linear?
if (ddsFile.RgbBitCount > 0)
{
linear = !swizzle;
}
//Get Data Lengths
uint width = ddsFile.Width, height = ddsFile.Height; int position = 0;
for (int i = 0; i < lodLevels; i++)
{
//Prepare
int lodLength = 0; mipWidth = width; mipHeight = height;
//Loop
for (int j = i; j <= ddsFile.MipmapCount; j++)
{
lodLength += (int)(mipWidth * mipHeight * bitsPerPixel / 8);
mipWidth /= 2; mipHeight /= 2;
}
//Prepare
int mipPosition = 0;
buffers[i] = new byte[lodLength]; mipWidth = width; mipHeight = height;
for (int j = i; j <= ddsFile.MipmapCount; j++)
{
//Get Mip Data
byte[] data = new byte[mipWidth * mipHeight * bitsPerPixel / 8];
Array.Copy(ddsFile.Data, mipPosition + position, data, 0, data.Length);
//Swizzle?
if (swizzle)
{
data = Swizzler.Swizzle(data, (int)mipWidth, (int)mipHeight, 1, (int)bitsPerPixel, !swizzle);
}
//Copy
Array.Copy(data, 0, buffers[i], mipPosition, data.Length);
//Increment
mipPosition += (int)(mipWidth * mipHeight * bitsPerPixel / 8);
mipWidth /= 2; mipHeight /= 2;
}
//Increment
position += (int)(width * height * bitsPerPixel / 8);
//Get next LOD
width /= 2; height /= 2;
}
//Return
return(buffers);
}
private byte[] image_CreateBuffer(Image image, out bool linear, out bool swizzle, out bool deleteLods)
{
//Prepare
linear = false;
swizzle = false;
deleteLods = true;
byte[] buffer = new byte[image.Width * image.Height * 4];
//Get Color Data
Color pixel = Color.Black;
using (Bitmap bitmap = new Bitmap(image))
for (int y = 0; y < bitmap.Height; y++)
{
for (int x = 0; x < bitmap.Width; x++)
{
//Get Pixel
pixel = bitmap.GetPixel(x, y);
int a = y * bitmap.Width + x;
//Copy into buffer
buffer[a * 4] = pixel.B;
buffer[a * 4 + 1] = pixel.G;
buffer[a * 4 + 2] = pixel.R;
buffer[a * 4 + 3] = pixel.A;
}
}
//Confirm
using (TextureImportOptionsDialog texDlg = new TextureImportOptionsDialog())
{
//Setup
texDlg.OriginalHeight = image.Height;
texDlg.OriginalWidth = image.Width;
texDlg.MaxLodLevels = 1;
texDlg.LodLevels = 1;
texDlg.Format = HaloBitmap.BitmapFormat.A8r8g8b8;
//Show
if (texDlg.ShowDialog(this) == DialogResult.OK)
{
deleteLods = texDlg.DeleteLods;
swizzle = texDlg.Swizzle;
}
else
{
return(null);
}
}
//Get Linear
linear = !swizzle;
//Check
if (swizzle)
{
buffer = Swizzler.Swizzle(buffer, image.Width, image.Height, 1, 32, false);
}
//Return
return(buffer);
}