/// <summary>
/// Opens a texture to encode from a file.
/// </summary>
/// <param name="file">Filename of the file that contains the texture data.</param>
/// <param name="pixelFormat">Pixel format to encode the texture to.</param>
/// <param name="dataFormat">Data format to encode the texture to.</param>
public SvrTextureEncoder(string file, SvrPixelFormat pixelFormat, SvrDataFormat dataFormat) : base(file)
{
if (decodedBitmap != null)
{
initalized = Initalize(pixelFormat, dataFormat);
}
}
public static SvrDataCodec GetDataCodec(SvrDataFormat format)
{
switch (format)
{
case SvrDataFormat.Rectangle:
return(new Rectangle());
case SvrDataFormat.Index4ExternalPalette:
return(new Index4ExtClut());
case SvrDataFormat.Index8ExternalPalette:
return(new Index8ExtClut());
case SvrDataFormat.Index4Rgb5a3Rectangle:
case SvrDataFormat.Index4Rgb5a3Square:
case SvrDataFormat.Index4Argb8Rectangle:
case SvrDataFormat.Index4Argb8Square:
return(new Index4());
case SvrDataFormat.Index8Rgb5a3Rectangle:
case SvrDataFormat.Index8Rgb5a3Square:
case SvrDataFormat.Index8Argb8Rectangle:
case SvrDataFormat.Index8Argb8Square:
return(new Index8());
}
return(null);
}
/// <summary>
/// Open a bitmap from a file.
/// </summary>
/// <param name="file">Filename of the file that contains the bitmap data.</param>
/// <param name="PixelFormat">Pixel Format</param>
/// <param name="DataFormat">Data Format</param>
public SvrTextureEncoder(string file, SvrPixelFormat PixelFormat, SvrDataFormat DataFormat)
: base(file)
{
this.PixelFormat = (byte)PixelFormat;
this.DataFormat = (byte)DataFormat;
InitSuccess = Initalize();
}
/// <summary>
/// Open a bitmap from a stream.
/// </summary>
/// <param name="stream">Stream that contains the bitmap data.</param>
/// <param name="PixelFormat">Pixel Format</param>
/// <param name="DataFormat">Data Format</param>
public SvrTextureEncoder(Stream stream, SvrPixelFormat PixelFormat, SvrDataFormat DataFormat)
: base(stream)
{
this.PixelFormat = (byte)PixelFormat;
this.DataFormat = (byte)DataFormat;
InitSuccess = Initalize();
}
/// <summary>
/// Opens a texture to encode from a stream.
/// </summary>
/// <param name="source">Stream that contains the texture data.</param>
/// <param name="pixelFormat">Pixel format to encode the texture to.</param>
/// <param name="dataFormat">Data format to encode the texture to.</param>
public SvrTextureEncoder(Stream source, SvrPixelFormat pixelFormat, SvrDataFormat dataFormat)
: base(source)
{
if (decodedBitmap != null)
{
initalized = Initalize(pixelFormat, dataFormat);
}
}
/// <summary>
/// Opens a texture to encode from a byte array.
/// </summary>
/// <param name="source">Byte array that contains the texture data.</param>
/// <param name="offset">Offset of the texture in the array.</param>
/// <param name="length">Number of bytes to read.</param>
/// <param name="pixelFormat">Pixel format to encode the texture to.</param>
/// <param name="dataFormat">Data format to encode the texture to.</param>
public SvrTextureEncoder(byte[] source, int offset, int length, SvrPixelFormat pixelFormat, SvrDataFormat dataFormat)
: base(source, offset, length)
{
if (decodedBitmap != null)
{
initalized = Initalize(pixelFormat, dataFormat);
}
}
/// <summary>
/// Opens a texture to encode from a file.
/// </summary>
/// <param name="file">Filename of the file that contains the texture data.</param>
/// <param name="pixelFormat">Pixel format to encode the texture to.</param>
/// <param name="dataFormat">Data format to encode the texture to.</param>
public SvrTextureEncoder(string file, SvrPixelFormat pixelFormat, SvrDataFormat dataFormat)
: base(file)
{
if (decodedBitmap != null)
{
initalized = Initalize(pixelFormat, dataFormat);
}
}
/// <summary>
/// Open a bitmap from a byte array.
/// </summary>
/// <param name="array">Byte array that contains the bitmap data.</param>
/// <param name="PixelFormat">Pixel Format</param>
/// <param name="DataFormat">Data Format</param>
public SvrTextureEncoder(byte[] array, SvrPixelFormat PixelFormat, SvrDataFormat DataFormat)
: base(array)
{
this.PixelFormat = (byte)PixelFormat;
this.DataFormat = (byte)DataFormat;
InitSuccess = Initalize();
}
/// <summary>
/// Opens a texture to encode from a stream.
/// </summary>
/// <param name="source">Stream that contains the texture data.</param>
/// <param name="pixelFormat">Pixel format to encode the texture to.</param>
/// <param name="dataFormat">Data format to encode the texture to.</param>
public SvrTextureEncoder(Stream source, SvrPixelFormat pixelFormat, SvrDataFormat dataFormat)
: base(source)
{
if (decodedBitmap != null)
{
initalized = Initalize(pixelFormat, dataFormat);
}
}
/// <summary>
/// Open a bitmap from a System.Drawing.Bitmap.
/// </summary>
/// <param name="bitmap">A System.Drawing.Bitmap instance.</param>
/// <param name="PixelFormat">Pixel Format</param>
/// <param name="DataFormat">Data Format</param>
public SvrTextureEncoder(Bitmap bitmap, SvrPixelFormat PixelFormat, SvrDataFormat DataFormat)
: base(bitmap)
{
this.PixelFormat = (byte)PixelFormat;
this.DataFormat = (byte)DataFormat;
InitSuccess = Initalize();
}
private static string DataFormatToString(SvrDataFormat format)
{
switch (format)
{
case SvrDataFormat.Rectangle: return("Rectangle");
case SvrDataFormat.Index4ExternalPalette: return("4-bit Indexed with External Palette");
case SvrDataFormat.Index8ExternalPalette: return("8-bit Indexed with External Palette");
case SvrDataFormat.Index4Rgb5a3Rectangle:
case SvrDataFormat.Index4Rgb5a3Square:
case SvrDataFormat.Index4Argb8Rectangle:
case SvrDataFormat.Index4Argb8Square: return("4-bit Indexed");
case SvrDataFormat.Index8Rgb5a3Rectangle:
case SvrDataFormat.Index8Rgb5a3Square:
case SvrDataFormat.Index8Argb8Rectangle:
case SvrDataFormat.Index8Argb8Square: return("8-bit Indexed");
}
return("Unknown");
}
public static SvrDataCodec GetDataCodec(SvrDataFormat format)
{
switch (format)
{
case SvrDataFormat.Rectangle:
return new Rectangle();
case SvrDataFormat.Index4ExternalPalette:
return new Index4ExtClut();
case SvrDataFormat.Index8ExternalPalette:
return new Index8ExtClut();
case SvrDataFormat.Index4Rgb5a3Rectangle:
case SvrDataFormat.Index4Rgb5a3Square:
case SvrDataFormat.Index4Argb8Rectangle:
case SvrDataFormat.Index4Argb8Square:
return new Index4();
case SvrDataFormat.Index8Rgb5a3Rectangle:
case SvrDataFormat.Index8Rgb5a3Square:
case SvrDataFormat.Index8Argb8Rectangle:
case SvrDataFormat.Index8Argb8Square:
return new Index8();
}
return null;
}
// Gets the data codec
public static SvrDataCodec GetDataCodec(SvrDataFormat format)
{
switch (format)
{
case SvrDataFormat.Rectangle:
return new SvrDataCodec.Rectangle();
case SvrDataFormat.Index4ExtClut:
return new SvrDataCodec.Index4ExtClut();
case SvrDataFormat.Index8ExtClut:
return new SvrDataCodec.Index8ExtClut();
case SvrDataFormat.Index4RectRgb5a3:
case SvrDataFormat.Index4SqrRgb5a3:
case SvrDataFormat.Index4RectArgb8:
case SvrDataFormat.Index4SqrArgb8:
return new SvrDataCodec.Index4();
case SvrDataFormat.Index8RectRgb5a3:
case SvrDataFormat.Index8SqrRgb5a3:
case SvrDataFormat.Index8RectArgb8:
case SvrDataFormat.Index8SqrArgb8:
return new SvrDataCodec.Index8();
}
return null;
}
private bool Initalize(SvrPixelFormat pixelFormat, SvrDataFormat dataFormat)
{
// Set the default values
hasGlobalIndex = true;
globalIndex = 0;
// Set the data format and pixel format and load the appropiate codecs
this.pixelFormat = pixelFormat;
pixelCodec = SvrPixelCodec.GetPixelCodec(pixelFormat);
this.dataFormat = dataFormat;
dataCodec = SvrDataCodec.GetDataCodec(dataFormat);
// Make sure the pixel and data codecs exists and we can encode to it
if (pixelCodec == null || !pixelCodec.CanEncode) return false;
if (dataCodec == null || !dataCodec.CanEncode) return false;
// Set the correct data format (it's ok to do it after getting the codecs).
if (dataFormat == SvrDataFormat.Index4Rgb5a3Rectangle || dataFormat == SvrDataFormat.Index4Rgb5a3Square ||
dataFormat == SvrDataFormat.Index4Argb8Rectangle || dataFormat == SvrDataFormat.Index4Argb8Square)
{
if (textureWidth == textureHeight) // Square texture
{
if (pixelFormat == SvrPixelFormat.Rgb5a3)
{
dataFormat = SvrDataFormat.Index4Rgb5a3Square;
}
else
{
dataFormat = SvrDataFormat.Index4Argb8Square;
}
}
else // Rectangular texture
{
if (pixelFormat == SvrPixelFormat.Rgb5a3)
{
dataFormat = SvrDataFormat.Index4Rgb5a3Rectangle;
}
else
{
dataFormat = SvrDataFormat.Index4Argb8Rectangle;
}
}
}
else if (dataFormat == SvrDataFormat.Index8Rgb5a3Rectangle || dataFormat == SvrDataFormat.Index8Rgb5a3Square ||
dataFormat == SvrDataFormat.Index8Argb8Rectangle || dataFormat == SvrDataFormat.Index8Argb8Square)
{
if (textureWidth == textureHeight) // Square texture
{
if (pixelFormat == SvrPixelFormat.Rgb5a3)
{
dataFormat = SvrDataFormat.Index8Rgb5a3Square;
}
else
{
dataFormat = SvrDataFormat.Index8Argb8Square;
}
}
else // Rectangular texture
{
if (pixelFormat == SvrPixelFormat.Rgb5a3)
{
dataFormat = SvrDataFormat.Index8Rgb5a3Rectangle;
}
else
{
dataFormat = SvrDataFormat.Index8Argb8Rectangle;
}
}
}
if (dataCodec.PaletteEntries != 0)
{
// Convert the bitmap to an array containing indicies.
decodedData = BitmapToRawIndexed(decodedBitmap, dataCodec.PaletteEntries, out texturePalette);
// If this texture has an external palette file, set up the palette encoder
if (dataCodec.NeedsExternalPalette)
{
paletteEncoder = new SvpPaletteEncoder(texturePalette, (ushort)dataCodec.PaletteEntries, pixelFormat, pixelCodec);
}
}
else
{
// Convert the bitmap to an array
decodedData = BitmapToRaw(decodedBitmap);
}
return true;
}
private bool Initalize(SvrPixelFormat pixelFormat, SvrDataFormat dataFormat)
{
// Set the default values
hasGlobalIndex = true;
globalIndex = 0;
// Set the data format and pixel format and load the appropiate codecs
this.pixelFormat = pixelFormat;
pixelCodec = SvrPixelCodec.GetPixelCodec(pixelFormat);
this.dataFormat = dataFormat;
dataCodec = SvrDataCodec.GetDataCodec(dataFormat);
// Make sure the pixel and data codecs exists and we can encode to it
if (pixelCodec == null || !pixelCodec.CanEncode)
{
return(false);
}
if (dataCodec == null || !dataCodec.CanEncode)
{
return(false);
}
// Set the correct data format (it's ok to do it after getting the codecs).
if (dataFormat == SvrDataFormat.Index4Rgb5a3Rectangle || dataFormat == SvrDataFormat.Index4Rgb5a3Square ||
dataFormat == SvrDataFormat.Index4Argb8Rectangle || dataFormat == SvrDataFormat.Index4Argb8Square)
{
if (textureWidth == textureHeight) // Square texture
{
if (pixelFormat == SvrPixelFormat.Rgb5a3)
{
dataFormat = SvrDataFormat.Index4Rgb5a3Square;
}
else
{
dataFormat = SvrDataFormat.Index4Argb8Square;
}
}
else // Rectangular texture
{
if (pixelFormat == SvrPixelFormat.Rgb5a3)
{
dataFormat = SvrDataFormat.Index4Rgb5a3Rectangle;
}
else
{
dataFormat = SvrDataFormat.Index4Argb8Rectangle;
}
}
}
else if (dataFormat == SvrDataFormat.Index8Rgb5a3Rectangle || dataFormat == SvrDataFormat.Index8Rgb5a3Square ||
dataFormat == SvrDataFormat.Index8Argb8Rectangle || dataFormat == SvrDataFormat.Index8Argb8Square)
{
if (textureWidth == textureHeight) // Square texture
{
if (pixelFormat == SvrPixelFormat.Rgb5a3)
{
dataFormat = SvrDataFormat.Index8Rgb5a3Square;
}
else
{
dataFormat = SvrDataFormat.Index8Argb8Square;
}
}
else // Rectangular texture
{
if (pixelFormat == SvrPixelFormat.Rgb5a3)
{
dataFormat = SvrDataFormat.Index8Rgb5a3Rectangle;
}
else
{
dataFormat = SvrDataFormat.Index8Argb8Rectangle;
}
}
}
if (dataCodec.PaletteEntries != 0)
{
// Convert the bitmap to an array containing indicies.
decodedData = BitmapToRawIndexed(decodedBitmap, dataCodec.PaletteEntries, out texturePalette);
// If this texture has an external palette file, set up the palette encoder
if (dataCodec.NeedsExternalPalette)
{
paletteEncoder = new SvpPaletteEncoder(texturePalette, (ushort)dataCodec.PaletteEntries, pixelFormat, pixelCodec);
}
}
else
{
// Convert the bitmap to an array
decodedData = BitmapToRaw(decodedBitmap);
}
return(true);
}
protected override void Initalize()
{
// Check to see if what we are dealing with is a SVR texture
if (!Is(encodedData))
{
throw new NotAValidTextureException("This is not a valid GVR texture.");
}
// Determine the offsets of the GBIX (if present) and PVRT header chunks.
if (PTMethods.Contains(encodedData, 0, Encoding.UTF8.GetBytes("GBIX")))
{
gbixOffset = 0x00;
pvrtOffset = 0x10;
}
else
{
gbixOffset = -1;
pvrtOffset = 0x00;
}
// Read the global index (if it is present). If it is not present, just set it to 0.
if (gbixOffset != -1)
{
globalIndex = BitConverter.ToUInt32(encodedData, gbixOffset + 0x08);
}
else
{
globalIndex = 0;
}
// Read information about the texture
textureWidth = BitConverter.ToUInt16(encodedData, pvrtOffset + 0x0C);
textureHeight = BitConverter.ToUInt16(encodedData, pvrtOffset + 0x0E);
pixelFormat = (SvrPixelFormat)encodedData[pvrtOffset + 0x08];
dataFormat = (SvrDataFormat)encodedData[pvrtOffset + 0x09];
// Get the codecs and make sure we can decode using them
pixelCodec = SvrPixelCodec.GetPixelCodec(pixelFormat);
dataCodec = SvrDataCodec.GetDataCodec(dataFormat);
if (dataCodec != null && pixelCodec != null)
{
dataCodec.PixelCodec = pixelCodec;
canDecode = true;
}
// Set the palette and data offsets
paletteEntries = dataCodec.PaletteEntries;
if (!canDecode || paletteEntries == 0 || dataCodec.NeedsExternalPalette)
{
paletteOffset = -1;
dataOffset = pvrtOffset + 0x10;
}
else
{
paletteOffset = pvrtOffset + 0x10;
dataOffset = paletteOffset + (paletteEntries * (pixelCodec.Bpp >> 3));
}
initalized = true;
}
protected override void Initalize()
{
// Check to see if what we are dealing with is a SVR texture
if (!Is(encodedData))
{
throw new NotAValidTextureException("This is not a valid GVR texture.");
}
// Determine the offsets of the GBIX (if present) and PVRT header chunks.
if (PTMethods.Contains(encodedData, 0, Encoding.UTF8.GetBytes("GBIX")))
{
gbixOffset = 0x00;
pvrtOffset = 0x10;
}
else
{
gbixOffset = -1;
pvrtOffset = 0x00;
}
// Read the global index (if it is present). If it is not present, just set it to 0.
if (gbixOffset != -1)
{
globalIndex = BitConverter.ToUInt32(encodedData, gbixOffset + 0x08);
}
else
{
globalIndex = 0;
}
// Read information about the texture
textureWidth = BitConverter.ToUInt16(encodedData, pvrtOffset + 0x0C);
textureHeight = BitConverter.ToUInt16(encodedData, pvrtOffset + 0x0E);
pixelFormat = (SvrPixelFormat)encodedData[pvrtOffset + 0x08];
dataFormat = (SvrDataFormat)encodedData[pvrtOffset + 0x09];
// Get the codecs and make sure we can decode using them
pixelCodec = SvrPixelCodec.GetPixelCodec(pixelFormat);
dataCodec = SvrDataCodec.GetDataCodec(dataFormat);
if (dataCodec != null && pixelCodec != null)
{
dataCodec.PixelCodec = pixelCodec;
canDecode = true;
}
// Set the palette and data offsets
paletteEntries = dataCodec.PaletteEntries;
if (!canDecode || paletteEntries == 0 || dataCodec.NeedsExternalPalette)
{
paletteOffset = -1;
dataOffset = pvrtOffset + 0x10;
}
else
{
paletteOffset = pvrtOffset + 0x10;
dataOffset = paletteOffset + (paletteEntries * (pixelCodec.Bpp >> 3));
}
initalized = true;
}
// Checks to see if we can encode the texture based on data format specific things
private bool CanEncode(SvrPixelFormat PixelFormat, SvrDataFormat DataFormat, int width, int height)
{
// The converter should check to see that a pixel codec and data codec exists,
// along with checking that width >= 8 and height >= 8.
switch (DataFormat)
{
case SvrDataFormat.Index4RectRgb5a3:
case SvrDataFormat.Index8RectRgb5a3:
return (PixelFormat == SvrPixelFormat.Rgb5a3);
case SvrDataFormat.Index4SqrRgb5a3:
case SvrDataFormat.Index8SqrRgb5a3:
return (width == height && PixelFormat == SvrPixelFormat.Rgb5a3);
case SvrDataFormat.Index4RectArgb8:
case SvrDataFormat.Index8RectArgb8:
return (PixelFormat == SvrPixelFormat.Argb8888);
case SvrDataFormat.Index4SqrArgb8:
case SvrDataFormat.Index8SqrArgb8:
return (width == height && PixelFormat == SvrPixelFormat.Argb8888);
}
return true;
}
private static string DataFormatToString(SvrDataFormat format)
{
switch (format)
{
case SvrDataFormat.Rectangle: return "Rectangle";
case SvrDataFormat.Index4ExternalPalette: return "4-bit Indexed with External Palette";
case SvrDataFormat.Index8ExternalPalette: return "8-bit Indexed with External Palette";
case SvrDataFormat.Index4Rgb5a3Rectangle:
case SvrDataFormat.Index4Rgb5a3Square:
case SvrDataFormat.Index4Argb8Rectangle:
case SvrDataFormat.Index4Argb8Square: return "4-bit Indexed";
case SvrDataFormat.Index8Rgb5a3Rectangle:
case SvrDataFormat.Index8Rgb5a3Square:
case SvrDataFormat.Index8Argb8Rectangle:
case SvrDataFormat.Index8Argb8Square: return "8-bit Indexed";
}
return "Unknown";
}
/// <summary>
/// Opens a texture to encode from a byte array.
/// </summary>
/// <param name="source">Byte array that contains the texture data.</param>
/// <param name="offset">Offset of the texture in the array.</param>
/// <param name="length">Number of bytes to read.</param>
/// <param name="pixelFormat">Pixel format to encode the texture to.</param>
/// <param name="dataFormat">Data format to encode the texture to.</param>
public SvrTextureEncoder(byte[] source, int offset, int length, SvrPixelFormat pixelFormat, SvrDataFormat dataFormat)
: base(source, offset, length)
{
if (decodedBitmap != null)
{
initalized = Initalize(pixelFormat, dataFormat);
}
}
