How can i to save byte array data to a stream and convert them to a bitmap instance

[yang from china]

I cannot open TGA file use framework's class,so I am trying to convert TGA file to BMP file(or others).Now I have read the palette data and pixel data successfully.One way I create a temporary BMP file so I can open it again by use filestream.but it is stupid.

Can anyone tell me create bitmap instance by using palette data and pixel data?

any reply is very thanksful.

[Plater]

Hmm, I'm not sure about creating a bmp from a pallette, but I seem to remember finding the MemoryStream object very usefull in creating bitmaps from byte data. About all I can offer though.

[yang from china]

Hmm, I'm not sure about creating a bmp from a pallette, but I seem to remember finding the MemoryStream object very usefull in creating bitmaps from byte data. About all I can offer though.

very thanks for your guide!

well, I am failed to use MemmoryStream to create bitmap.
bitmap constructor:bitmap(stream);

When I use MemoryStream to create bitmap,The error window tell me parameter is wrong.so I have to find a way to create bitmap by using palette data and pixel data I get from the TGA file.

by the way,can you show me how to use MemoryStream to create bitmap?

thanks!

[yang from china]

Hmm, I'm not sure about creating a bmp from a pallette, but I seem to remember finding the MemoryStream object very usefull in creating bitmaps from byte data. About all I can offer though.

Thank you for your reply.I found a way to solve my proble.Can you show me some advices:

byte[] paletteArr = readPaletteData();
byte[] pixelArr = readPixelData();

Bitmap bmp = new Bitmap(Width,Height);

for (int i = 0; i < Height;i++ )
{
for (int j = 0; j < Width; j++)
{
Color tmp;
int R = (int)paletteArr[pixelArr[i * Width + j] * 3 + 2];
int G = (int)paletteArr[pixelArr[i * Width + j] * 3 + 1];
int B = (int)paletteArr[pixelArr[i * Width + j] * 3 + 0];

tmp = Color.FromArgb(R,G,B);

bmp.SetPixel(j, Height - 1 - i, tmp);
}

}
return bmp;

Thanks!