README

FastBMP

A lightweight wrapper for direct pixel data access. The current implementation is limited to 32-bit Bitmap (best memory alignment) and will enforce this pixel format.

Usage

You can attach to an existing Bitmap and use it like a wrapper.

LBMP:= TFastBMP.Create(0,0);
LBMP.AttachToBitmap(Image1.Picture.Bitmap);
//Pixel access code
Image1.Repaint;

Create your own Bitmap

LBMP:= TFastBMP.Create(640,480);

Or copy an existing Bitmap

LBMP:= TFastBMP.Create(Image1.Picture.Bitmap);

Afterwards, you can access the pixels with

LBMP.Pixels[42,42].R:= 42;

This works around 1000 times faster than the access through Bitmap.Canvas.Pixels, since it makes use of ScanLine.

Future plans

• support for several pixel formats