Re: [platform-swt-dev] need an efficient GC.setPixel( int, int )

[Steve Northover <Steve_Northover@xxxxxxxxxx>]

Yes.  Enter a buzilla report and
it will be done!

"Arnaud De Muyser" <ademuyser@xxxxxxxxxx> Sent by: platform-swt-dev-admin@xxxxxxxxxxx 10/31/2003 07:31 AM Please respond to platform-swt-dev

To:        platform-swt-dev@xxxxxxxxxxx         cc:                 Subject:        [platform-swt-dev] need an efficient GC.setPixel( int, int )

Hello, 

I'm using eclipse.2.1.0 on win32 system. 
I want to draw a pixel with a color on a GC, 
I know I can use GC.drawLine(x,y,x,y), that all users do...

But as we can see in GC source file drawLine (on win32)
do: 
 - check various things... 
 - OS.moveTo(...) 
 - OS.lineTo(...) 
 - OS.setPixel(...) 

Here moveTo()/lineTo() spend time to do nothing. 
As I test it in my code replacing drawPixel(x,y,x,y)
by OS.setPixel( ... ), I now this second solution 
is 3 (or more times) faster ! 

So the question is, can GC class be upgraded to have
this kind of method ? 
 - public void setPixel( int _x, int _y ); 
 - public void setPixel( int _x, int _y, Color _color );


If it's already done or planed to do in 3.0 ... forget me.

Thanks a lot! 

Arnaud. 

PS: 
 Using setPixel() in conjonction to color creation, what is the speedest
 way to set a color and draw a pixel ? 
 (I mean  create Color object each time I drawpixel is a total waste
of 
  memory and time ... ).