public static Bitmap LoadDDJ(byte[] buffer)
{
if (buffer == null)
{
return(new Bitmap(256, 256, PixelFormat.Format16bppRgb555));
}
Bitmap bitmap;
using (Stream stream = new MemoryStream(buffer, 20, buffer.GetUpperBound(0) - 0x13))
{
FreeImageAPI.FREE_IMAGE_FORMAT format = FreeImageAPI.FREE_IMAGE_FORMAT.FIF_DDS;
FreeImageAPI.FIBITMAP dib = FreeImageAPI.FreeImage.LoadFromStream(stream, FreeImageAPI.FREE_IMAGE_LOAD_FLAGS.DEFAULT, ref format);
bitmap = FreeImageAPI.FreeImage.GetBitmap(dib);
FreeImageAPI.FreeImage.UnloadEx(ref dib);
}
return(bitmap);
}
public ITexture2D GetIBLTexture(string path)
{
FreeImageAPI.FREE_IMAGE_FORMAT type = FreeImageAPI.FreeImage.GetFileType(path, 0);
FreeImageAPI.FIBITMAP bitmap = FreeImageAPI.FreeImage.Load(type, path, FreeImageAPI.FREE_IMAGE_LOAD_FLAGS.DEFAULT);
//FreeImageAPI.FIBITMAP convert = FreeImageAPI.FreeImage.ToneMapping(bitmap, FreeImageAPI.FREE_IMAGE_TMO.FITMO_DRAGO03, 0, 0);
FreeImageAPI.FIBITMAP convert = FreeImageAPI.FreeImage.ToneMapping(bitmap, FreeImageAPI.FREE_IMAGE_TMO.FITMO_REINHARD05, 0, 0);
if (bitmap.IsNull)
{
return(null);
}
uint width = FreeImageAPI.FreeImage.GetWidth(convert);
uint height = FreeImageAPI.FreeImage.GetHeight(convert);
int channelNo = 3;
byte[] imgData = new byte[width * height * channelNo];
for (int i = 0; i < height; i++)
{
for (int j = 0; j < width; j++)
{
int idx = i * (int)width + j;
FreeImageAPI.RGBQUAD color = new FreeImageAPI.RGBQUAD();
int byteIdx = idx * channelNo;
byteIdx -= 1;
bool pSuccess = FreeImageAPI.FreeImage.GetPixelColor(convert, (uint)j, (uint)i, out color);
Color nColor = color.Color;
imgData[byteIdx + 1] = color.rgbRed;
imgData[byteIdx + 2] = color.rgbGreen;
imgData[byteIdx + 3] = color.rgbBlue;
if (!pSuccess)
{
return(null);
}
}
}
Texture2dGL text = Texture2dGL.Create((int)width, (int)height);
IntPtr ptr = Marshal.UnsafeAddrOfPinnedArrayElement(imgData, 0);
text.LoadPixels(ptr, (int)width, (int)height, OpenTK.Graphics.OpenGL4.PixelInternalFormat.Rgb8, OpenTK.Graphics.OpenGL4.PixelFormat.Rgb, OpenTK.Graphics.OpenGL4.PixelType.UnsignedByte);
return(text);
}
