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using System;
using System.Drawing;
using System.Drawing.Imaging;
using Pfz.Drawing.Extensions.PixelFormatExtensions;
namespace Pfz.Drawing
{
/// <summary>
/// This class holds a lock over a 24-bit rgb bitmap.
/// It does bound checking but, still, is many times faster than bitmap.GetPixel
/// and bitmap.SetPixel.
/// </summary>
public abstract class LockBitmapRgb24Base:
LockBitmapBase
{
internal LockBitmapRgb24Base(Bitmap bitmap, ImageLockMode imageLockMode)
{
if (bitmap == null)
throw new ArgumentNullException("bitmap");
Rectangle rectangle = new Rectangle(new Point(0, 0), bitmap.Size);
p_Initialize(bitmap, imageLockMode, rectangle);
}
internal LockBitmapRgb24Base(Bitmap bitmap, ImageLockMode imageLockMode, Rectangle rectangle)
{
if (bitmap == null)
throw new ArgumentNullException("bitmap");
p_Initialize(bitmap, imageLockMode, rectangle);
}
private void p_Initialize(Bitmap bitmap, ImageLockMode imageLockMode, Rectangle rectangle)
{
fBitmap = bitmap;
fBitmapData = fBitmap.LockBits(rectangle, imageLockMode, PixelFormat.Format24bppRgb);
unsafe
{
fScanline0 = (byte *)fBitmapData.Scan0.ToPointer();
}
}
/// <summary>
/// Gets or sets a pixel as its int representation.
/// </summary>
protected Rgb24 this[int x, int y]
{
get
{
if (x < 0 || x >= fBitmapData.Width)
throw new ArgumentOutOfRangeException("x");
if (y < 0 || y >= fBitmapData.Height)
throw new ArgumentOutOfRangeException("y");
unsafe
{
byte *scanline = fScanline0;
if (scanline == null)
throw new ObjectDisposedException(GetType().FullName);
scanline += fBitmapData.Stride * y;
Rgb24 *typedScanline = (Rgb24 *)scanline;
return typedScanline[x];
}
}
set
{
if (x < 0 || x >= fBitmapData.Width)
throw new ArgumentOutOfRangeException("x");
if (y < 0 || y >= fBitmapData.Height)
throw new ArgumentOutOfRangeException("y");
unsafe
{
byte *scanline = fScanline0;
if (scanline == null)
throw new ObjectDisposedException(GetType().FullName);
scanline += fBitmapData.Stride * y;
Rgb24 *typedScanline = (Rgb24 *)scanline;
typedScanline[x] = value;
}
}
}
}
}
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I started to program computers when I was 11 years old, as a hobbyist, programming in AMOS Basic and Blitz Basic for Amiga.
At 12 I had my first try with assembler, but it was too difficult at the time. Then, in the same year, I learned C and, after learning C, I was finally able to learn assembler (for Motorola 680x0).
Not sure, but probably between 12 and 13, I started to learn C++. I always programmed "in an object oriented way", but using function pointers instead of virtual methods.
At 15 I started to learn Pascal at school and to use Delphi. At 16 I started my first internship (using Delphi). At 18 I started to work professionally using C++ and since then I've developed my programming skills as a professional developer in C++ and C#, generally creating libraries that help other developers do their work easier, faster and with less errors.
Want more info or simply want to contact me?
Take a look at:
http://paulozemek.azurewebsites.net/
Or e-mail me at: paulozemek@outlook.com
Codeproject MVP 2012, 2015 & 2016
Microsoft MVP 2013-2014 (in October 2014 I started working at Microsoft, so I can't be a Microsoft MVP anymore).