static public bool StreamGetImage(BinaryReader stream, int bytes, ref ImageBPPs BPP, ref Bitmap image)
{
if (bytes < 4)
{
stream.ReadBytes(bytes);
return(false);
}
// BPP
BPP = ImageBPPs.b32argb;
PixelFormat pFormat = (PixelFormat)stream.ReadInt32();
if (pFormat == PixelFormat.Format24bppRgb)
{
BPP = ImageBPPs.b24rgb;
}
if (pFormat == PixelFormat.Format16bppArgb1555)
{
BPP = ImageBPPs.b16a1r5g5b5;
}
if (pFormat == PixelFormat.Format16bppRgb565)
{
BPP = ImageBPPs.b16r5g6b5;
}
if (pFormat == PixelFormat.Format8bppIndexed)
{
BPP = ImageBPPs.b8;
}
if (pFormat == PixelFormat.Format4bppIndexed)
{
BPP = ImageBPPs.b4;
}
// Read data
Bitmap bmap;
using (MemoryStream ms = new MemoryStream())
{
ms.Write(stream.ReadBytes(bytes - 4), 0, bytes - 4);
bmap = new Bitmap(ms);
}
// Return
image = new Bitmap(bmap.Width, bmap.Height, PixelFormat.Format32bppArgb);
Graphics.FromImage(image).DrawImageUnscaled(bmap, 0, 0);
return(true);
}
static public void StreamPutImage(BinaryWriter stream, Bitmap image, ImageBPPs BPP)
{
// BPP
var pFormat = PixelFormat.Format32bppArgb;
if (BPP == ImageBPPs.b24rgb)
{
pFormat = PixelFormat.Format24bppRgb;
}
if (BPP == ImageBPPs.b16a1r5g5b5)
{
pFormat = PixelFormat.Format16bppArgb1555;
}
if (BPP == ImageBPPs.b16r5g6b5)
{
pFormat = PixelFormat.Format16bppRgb565;
}
if (BPP == ImageBPPs.b8)
{
pFormat = PixelFormat.Format8bppIndexed;
}
if (BPP == ImageBPPs.b4)
{
pFormat = PixelFormat.Format4bppIndexed;
}
// Prepare
var bmap = new Bitmap(image.Width, image.Height, pFormat);
var graphics = Graphics.FromImage(bmap);
graphics.DrawImageUnscaled(image, 0, 0);
// Get data
using (MemoryStream ms = new MemoryStream())
{
bmap.Save(ms, ImageFormat.Bmp);
// Write
stream.Write((int)ms.Length + 4);
stream.Write((int)pFormat);
stream.Write(ms.ToArray());
}
}
