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Ingy döt Net 2013-04-10 22:43:41 -07:00
parent db842d013d
commit d066446780
11389 changed files with 98361 additions and 1020 deletions
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Task/Bitmap-Write-a-PPM-file/Visual-Basic-.NET/bitmap-write-a-ppm-file.visual Normal file
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Public Shared Sub SaveRasterBitmapToPpmFile(ByVal rasterBitmap As RasterBitmap, ByVal filepath As String)
Dim header As String = String.Format("P6{0}{1}{2}{3}{0}255{0}", vbLf, rasterBitmap.Width, " "c, rasterBitmap.Height)
Dim bufferSize As Integer = header.Length + (rasterBitmap.Width * rasterBitmap.Height * 3)
Dim bytes(bufferSize - 1) As Byte
Buffer.BlockCopy(Encoding.ASCII.GetBytes(header.ToString), 0, bytes, 0, header.Length)
Dim index As Integer = header.Length
For y As Integer = 0 To rasterBitmap.Height - 1
For x As Integer = 0 To rasterBitmap.Width - 1
Dim color As Rgb = rasterBitmap.GetPixel(x, y)
bytes(index) = color.R
bytes(index + 1) = color.G
bytes(index + 2) = color.B
index += 3
Next
Next
My.Computer.FileSystem.WriteAllBytes(filepath, bytes, False)
End Sub