public static int GetBitsPerPixel(SceGxmTextureBaseFormat baseFormat)
{
if (!bitsPerPixelMap.ContainsKey(baseFormat))
{
throw new Exception(string.Format("No matching bits per pixel known for {0}", baseFormat));
}
return(bitsPerPixelMap[baseFormat]);
}
public TextureBundle(BinaryReader reader, SceGxtTextureInfo info)
{
reader.BaseStream.Seek(info.DataOffset, SeekOrigin.Begin);
Width = info.GetWidth();
Height = info.GetHeight();
PaletteIndex = info.PaletteIndex;
RawLineSize = (int)(info.DataSize / info.GetHeightRounded());
TextureFormat = info.GetTextureFormat();
RoundedWidth = Width; //info.GetWidthRounded();
RoundedHeight = Height; //info.GetHeightRounded();
if (!PixelDataProviders.PixelFormatMap.ContainsKey(TextureFormat) || !PixelDataProviders.ProviderFunctions.ContainsKey(TextureFormat))
{
throw new FormatNotImplementedException(TextureFormat);
}
PixelFormat = PixelDataProviders.PixelFormatMap[TextureFormat];
PixelData = PixelDataProviders.ProviderFunctions[TextureFormat](reader, info);
SceGxmTextureBaseFormat textureBaseFormat = info.GetTextureBaseFormat();
// TODO: is this right? PVRTC/PVRTC2 doesn't need this, but everything else does?
if (textureBaseFormat != SceGxmTextureBaseFormat.PVRT2BPP && textureBaseFormat != SceGxmTextureBaseFormat.PVRT4BPP &&
textureBaseFormat != SceGxmTextureBaseFormat.PVRTII2BPP && textureBaseFormat != SceGxmTextureBaseFormat.PVRTII4BPP)
{
SceGxmTextureType textureType = info.GetTextureType();
switch (textureType)
{
case SceGxmTextureType.Linear:
// Nothing to be done!
break;
case SceGxmTextureType.Tiled:
// TODO: verify me!
PixelData = PostProcessing.UntileTexture(PixelData, info.GetWidthRounded(), info.GetHeightRounded(), PixelFormat);
break;
case SceGxmTextureType.Swizzled:
case SceGxmTextureType.Cube:
// TODO: is cube really the same as swizzled? seems that way from CS' *env* files...
PixelData = PostProcessing.UnswizzleTexture(PixelData, info.GetWidthRounded(), info.GetHeightRounded(), PixelFormat);
break;
case (SceGxmTextureType)0xA0000000:
// TODO: mehhhhh
PixelData = PostProcessing.UnswizzleTexture(PixelData, info.GetWidthRounded(), info.GetHeightRounded(), PixelFormat);
break;
default:
throw new TypeNotImplementedException(textureType);
}
}
}
private static byte[] DecompressDxtBlock(BinaryReader reader, SceGxmTextureBaseFormat format)
{
byte[] outputData = new byte[(4 * 4) * 4];
byte[] colorData = null, alphaData = null;
if (format != SceGxmTextureBaseFormat.UBC1)
{
alphaData = DecompressDxtAlpha(reader, format);
}
colorData = DecompressDxtColor(reader, format);
for (int i = 0; i < colorData.Length; i += 4)
{
outputData[i] = colorData[i];
outputData[i + 1] = colorData[i + 1];
outputData[i + 2] = colorData[i + 2];
outputData[i + 3] = (alphaData != null ? alphaData[i + 3] : colorData[i + 3]);
}
return(outputData);
}
private Bitmap CreateBitmap(int infoIdx, int forcePaletteIdx = -1)
{
SceGxtTextureInfo info = TextureInfos[infoIdx];
ImageBinary imageBinary = new ImageBinary();
imageBinary.Width = info.GetWidth();
imageBinary.Height = info.GetHeight();
imageBinary.InputPixelFormat = PSVita.GetPixelDataFormat(info.GetTextureFormat());
imageBinary.InputEndianness = Endian.LittleEndian;
imageBinary.AddInputPixels(PixelData[infoIdx]);
// TODO: verify all this crap, GXT conversion wrt image [dimension/format/type] is fragile as all hell
SceGxmTextureBaseFormat textureBaseFormat = info.GetTextureBaseFormat();
SceGxmTextureType textureType = info.GetTextureType();
if (textureType == SceGxmTextureType.Linear &&
textureBaseFormat != SceGxmTextureBaseFormat.UBC1 && textureBaseFormat != SceGxmTextureBaseFormat.UBC2 && textureBaseFormat != SceGxmTextureBaseFormat.UBC3 &&
textureBaseFormat != SceGxmTextureBaseFormat.PVRT2BPP && textureBaseFormat != SceGxmTextureBaseFormat.PVRT4BPP &&
textureBaseFormat != SceGxmTextureBaseFormat.PVRTII2BPP && textureBaseFormat != SceGxmTextureBaseFormat.PVRTII4BPP)
{
imageBinary.PhysicalWidth = (int)(((info.DataSize / imageBinary.Height) * 8) / PSVita.GetBitsPerPixel(textureBaseFormat));
imageBinary.PhysicalHeight = info.GetHeight();
}
else
{
imageBinary.PhysicalWidth = info.GetWidthRounded();
imageBinary.PhysicalHeight = info.GetHeightRounded();
}
if (textureBaseFormat != SceGxmTextureBaseFormat.PVRT2BPP && textureBaseFormat != SceGxmTextureBaseFormat.PVRT4BPP)
{
switch (textureType)
{
case SceGxmTextureType.Linear:
// Nothing to be done!
break;
case SceGxmTextureType.Tiled:
// TODO: verify me!
imageBinary.InputPixelFormat |= PixelDataFormat.PixelOrderingTiled3DS;
break;
case SceGxmTextureType.Swizzled:
case SceGxmTextureType.Cube:
// TODO: is cube really the same as swizzled? seems that way from CS' *env* files...
imageBinary.InputPixelFormat |= PixelDataFormat.PixelOrderingSwizzledVita;
break;
case (SceGxmTextureType)0xA0000000:
// TODO: this is odd and needs investigation, found ex. in Odin Sphere, Puyo Puyo Tetris, ...
imageBinary.InputPixelFormat |= PixelDataFormat.PixelOrderingSwizzledVita;
break;
}
}
if (textureBaseFormat == SceGxmTextureBaseFormat.P4 || textureBaseFormat == SceGxmTextureBaseFormat.P8)
{
imageBinary.InputPaletteFormat = PSVita.GetPaletteFormat(info.GetTextureFormat());
if (textureBaseFormat == SceGxmTextureBaseFormat.P4)
{
foreach (byte[] paletteData in P4Palettes)
{
imageBinary.AddInputPalette(paletteData);
}
}
else if (textureBaseFormat == SceGxmTextureBaseFormat.P8)
{
foreach (byte[] paletteData in P8Palettes)
{
imageBinary.AddInputPalette(paletteData);
}
}
}
return(imageBinary.GetBitmap(0, forcePaletteIdx != -1 ? forcePaletteIdx : info.PaletteIndex));
}
private static byte[] DecompressDxtColor(BinaryReader reader, SceGxmTextureBaseFormat format)
{
byte[] colorOut = new byte[(4 * 4) * 4];
ushort color0 = reader.ReadUInt16();
ushort color1 = reader.ReadUInt16();
uint bits = reader.ReadUInt32();
byte c0r, c0g, c0b, c1r, c1g, c1b;
UnpackRgb565(color0, out c0r, out c0g, out c0b);
UnpackRgb565(color1, out c1r, out c1g, out c1b);
byte[] bitsExt = new byte[16];
for (int i = 0; i < bitsExt.Length; i++)
{
bitsExt[i] = (byte)((bits >> (i * 2)) & 0x3);
}
for (int y = 0; y < 4; y++)
{
for (int x = 0; x < 4; x++)
{
byte code = bitsExt[(y * 4) + x];
int destOffset = ((y * 4) + x) * 4;
// NOTE: Vita DXT1 appears to be RGB-only, thus always opaque
colorOut[destOffset + 3] = 0xFF;
if (format == SceGxmTextureBaseFormat.UBC1 && color0 <= color1)
{
switch (code)
{
case 0x00:
colorOut[destOffset + 0] = c0b;
colorOut[destOffset + 1] = c0g;
colorOut[destOffset + 2] = c0r;
break;
case 0x01:
colorOut[destOffset + 0] = c1b;
colorOut[destOffset + 1] = c1g;
colorOut[destOffset + 2] = c1r;
break;
case 0x02:
colorOut[destOffset + 0] = (byte)((c0b + c1b) / 2);
colorOut[destOffset + 1] = (byte)((c0g + c1g) / 2);
colorOut[destOffset + 2] = (byte)((c0r + c1r) / 2);
break;
case 0x03:
colorOut[destOffset + 0] = 0;
colorOut[destOffset + 1] = 0;
colorOut[destOffset + 2] = 0;
break;
}
}
else
{
switch (code)
{
case 0x00:
colorOut[destOffset + 0] = c0b;
colorOut[destOffset + 1] = c0g;
colorOut[destOffset + 2] = c0r;
break;
case 0x01:
colorOut[destOffset + 0] = c1b;
colorOut[destOffset + 1] = c1g;
colorOut[destOffset + 2] = c1r;
break;
case 0x02:
colorOut[destOffset + 0] = (byte)((2 * c0b + c1b) / 3);
colorOut[destOffset + 1] = (byte)((2 * c0g + c1g) / 3);
colorOut[destOffset + 2] = (byte)((2 * c0r + c1r) / 3);
break;
case 0x03:
colorOut[destOffset + 0] = (byte)((c0b + 2 * c1b) / 3);
colorOut[destOffset + 1] = (byte)((c0g + 2 * c1g) / 3);
colorOut[destOffset + 2] = (byte)((c0r + 2 * c1r) / 3);
break;
}
}
}
}
return(colorOut);
}
private static void DecodeDxtTile(BinaryReader reader, byte[] targetData, int x, int y, int width, int height, SceGxmTextureBaseFormat format)
{
for (int by = 0; by < 8; by += 4)
{
for (int bx = 0; bx < 8; bx += 4)
{
using (BinaryReader decodedReader = new BinaryReader(new MemoryStream(DecompressDxtBlock(reader, format))))
{
for (int px = 0; px < 4; px++)
{
for (int py = 0; py < 4; py++)
{
int ix = (x + bx + px);
int iy = (y + by + py);
if (ix >= width || iy >= height)
{
continue;
}
int pixelOffset = (int)(((iy * width) + ix) * 4);
Buffer.BlockCopy(decodedReader.ReadBytes(4), 0, targetData, pixelOffset, 4);
}
}
}
}
}
}
private static byte[] DecompressDxtAlpha(BinaryReader reader, SceGxmTextureBaseFormat format)
{
byte[] alphaOut = new byte[(4 * 4) * 4];
if (format == SceGxmTextureBaseFormat.UBC2)
{
ulong alpha = reader.ReadUInt64();
for (int i = 0; i < alphaOut.Length; i += 4)
{
alphaOut[i + 3] = (byte)(((alpha & 0xF) << 4) | (alpha & 0xF));
alpha >>= 4;
}
}
else if (format == SceGxmTextureBaseFormat.UBC3)
{
byte alpha0 = reader.ReadByte();
byte alpha1 = reader.ReadByte();
byte bits_5 = reader.ReadByte();
byte bits_4 = reader.ReadByte();
byte bits_3 = reader.ReadByte();
byte bits_2 = reader.ReadByte();
byte bits_1 = reader.ReadByte();
byte bits_0 = reader.ReadByte();
ulong bits = (ulong)(((ulong)bits_0 << 40) | ((ulong)bits_1 << 32) | ((ulong)bits_2 << 24) | ((ulong)bits_3 << 16) | ((ulong)bits_4 << 8) | (ulong)bits_5);
byte[] bitsExt = new byte[16];
for (int i = 0; i < bitsExt.Length; i++)
{
bitsExt[i] = (byte)((bits >> (i * 3)) & 0x7);
}
for (int y = 0; y < 4; y++)
{
for (int x = 0; x < 4; x++)
{
byte code = bitsExt[(y * 4) + x];
int destOffset = (((y * 4) + x) * 4) + 3;
if (alpha0 > alpha1)
{
switch (code)
{
case 0x00: alphaOut[destOffset] = alpha0; break;
case 0x01: alphaOut[destOffset] = alpha1; break;
case 0x02: alphaOut[destOffset] = (byte)((6 * alpha0 + 1 * alpha1) / 7); break;
case 0x03: alphaOut[destOffset] = (byte)((5 * alpha0 + 2 * alpha1) / 7); break;
case 0x04: alphaOut[destOffset] = (byte)((4 * alpha0 + 3 * alpha1) / 7); break;
case 0x05: alphaOut[destOffset] = (byte)((3 * alpha0 + 4 * alpha1) / 7); break;
case 0x06: alphaOut[destOffset] = (byte)((2 * alpha0 + 5 * alpha1) / 7); break;
case 0x07: alphaOut[destOffset] = (byte)((1 * alpha0 + 6 * alpha1) / 7); break;
}
}
else
{
switch (code)
{
case 0x00: alphaOut[destOffset] = alpha0; break;
case 0x01: alphaOut[destOffset] = alpha1; break;
case 0x02: alphaOut[destOffset] = (byte)((4 * alpha0 + 1 * alpha1) / 5); break;
case 0x03: alphaOut[destOffset] = (byte)((3 * alpha0 + 2 * alpha1) / 5); break;
case 0x04: alphaOut[destOffset] = (byte)((2 * alpha0 + 3 * alpha1) / 5); break;
case 0x05: alphaOut[destOffset] = (byte)((1 * alpha0 + 4 * alpha1) / 5); break;
case 0x06: alphaOut[destOffset] = 0x00; break;
case 0x07: alphaOut[destOffset] = 0xFF; break;
}
}
}
}
}
return(alphaOut);
}
