Messages

The Ocean's code use a lookup table and take a value from a matrix.
It's the fastest.
Ciao

in the Kanonet code eliminated the integer cast  (see code) Now >10% faster (on my computer)

Code (glbasic) Select Expand


FUNCTION QQSIN1: x // Kanonet
LOCAL xx%
xx=x
IF xx >= 360
DEC x, ( xx / 360 ) * 360  // was DEC x, INTEGER( x / 360 ) * 360
ELSEIF  x < 0
INC x, ( 1 - xx / 360 ) * 360 // was INC x, INTEGER( 1 - x / 360 ) * 360
ENDIF

IF x < 180
x = ( 0.02222144652331750907567718514381 - 0.00012346049003081125437778164739108 * x )* x
RETURN ( 0.775 + 0.225 *x ) * x
ENDIF
x = 180 - x
x = ( 0.02222144652331750907567718514381 + 0.00012346049003081125437778164739108 * x ) * x
RETURN ( 0.775 - 0.225 * x ) * x
ENDFUNCTION


@Ocean
your code is very very fast (40% faster) congratulations.
Ingenious the & bAnd control in: return _cos_tbl_[ (int)(x * __d__) & __c__] ;
the other side of the coin is the increased use of memory of the lookup table.
Ciao

sorry Ocean, but I don't understand.
The angles outside 0-360 degrees are redused at the first quadrant but not converted in integer.
Can you give a practical example?

Kanonet
You're right.
Your code is faster on average by 7%
well done
ciao

@ Quentin
the new QQSIN for high (and low) angle.
Ciao


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FUNCTION QQCOS: x
   RETURN QQSIN(x+90)
ENDFUNCTION

Ciao

would not be better that the update files rather than generically called glbasic_sdk.exe, were called glbasic_sdk_10.57.exe  or  glbasic_sdk_10.68.exe for example? In this way with the version number in the filename would become much easier to manage updates.
Ciao

feel free to use it   

M_QSIN (ampos code) = 380 ms
QQSIN = 230 ms
QSIN   = 580 ms
SIN GLBasic= 1150 ms
Wait your time

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new QSIN (QQSIN).
on my computer (notebook):
QQSIN = 230 ms
QSIN   = 580 ms
SIN GLBasic= 1150 ms
Wait your time


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I think the problem is TO and no OR.
Try with NOTO% or RETOMA%

SpriteSpeedTester

On my notebooK Centrino 1.8Ghz Nvidia 8400 13-20FPS

As I said I would use the database as well as use of tables and charts as excel, see picture ..

a picture speaks a thousand words:

Hello everyone,
I want to write a program (especially for smartphone) management training for runners , and then I also manage the data base even if very simple, tables and graphic.
My question is: is GLBasic  a programming language suitable for this purpose?
Thank you

Hi all,
it's possible capture portion of screen outside the program of glbasic  (capture desktop,explorer,firefox etc)?
I would like write a magnifier program in windows system.
Thank you
Edo