Drawing dll - GameCreators Forum

Author

Message

Caleb1994

15

Years of Service

User Offline

Joined: 10th Oct 2008

Location: The Internet you idiot!

Posted: 3rd Oct 2009 00:33

Link

Just messing around today with dll's. it has box, dot, and bitmap drawing functions. the bitmap(soon to be bitmap and image) support transparency. and i had a 200x100 square and a about 100x100 image being drawn and it took less then 1 millisecond to work(printed 0) this is how it's working.

at the beginning you call InitDrawing() and it will get the backbuffer pointer then you can call AddPoint(), AddBox(), or AddBitmap() and specify position and colors. then when you call Draw() it locks the backbuffer and draws everything then unlocks it.

I am about to test it with the fps unlocked(i have to put some mp3's on this computer

) but i was having about 65 fps(the max lol) with the things stated above in a loop.

some might say this isn't very useful but i was bored

so I decided to do it. lol

here's the functions and the dll is attached. just wanted to see what fps other people got.

+ Code Snippet

function InitDrawing()
   lock backbuffer
   width = get backbuffer width()
   height = get backbuffer height()
   depth = get backbuffer depth()

   call dll 255,"?Init_Drawing@@YA_NPAKHHH@Z",Get backbuffer ptr(),width,height,depth

   unlock backbuffer
endfunction

function Draw()
   lock backbuffer
   call dll 255,"?Draw@@YAKXZ"
   unlock backbuffer
endfunction

function addpoint(x,y,color)
   call dll 255,"?AddPoint@@YAHHHK@Z",x,y,color
endfunction

function AddBox(left,right,top,bottom,color)
   call dll 255,"?AddBox@@YAHHHHHK@Z",left,right,top,bottom,color
endfunction

function addbitmap(x, y, bmp, trans)
   make memblock from bitmap 255,bmp
   Width = memblock dword(255, 0)
   height = memblock dword(255, 4)
   ptr = get memblock ptr(255)+12
   size = get memblock size(255)-12
   call dll 255,"?AddImage@@YAHHHPAKKHHH@Z",x,y,ptr,trans,size,width,height
   delete memblock 255
endfunction

New Site! Check it out \/

Attachments

Login to view attachments

Back to top

Profile PM Website

TheComet

16

Years of Service

User Offline

Joined: 18th Oct 2007

Location: I`m under ur bridge eating ur goatz.

Posted: 3rd Oct 2009 00:56

Link

I'll test this tomorrow, but from what I hear, it sounds cool! #) Maybe this will get my 2D game maker working faster...

TheComet

Make the paths of your enemies easier with WaypointPro!

Back to top

Profile PM Email Website

Ashingda 27

16

Years of Service

User Offline

Joined: 15th Feb 2008

Location:

Posted: 3rd Oct 2009 01:28

Link

It froze on me when I tried it out, would you post the codes you used for testing the fps along with the functions as well?

Back to top

Profile PM Email

Dark Dragon

16

Years of Service

User Offline

Joined: 22nd Jun 2007

Location: In the ring, Kickin\' *donkeybutt*.

Posted: 3rd Oct 2009 02:29

Link

Quote: " the bitmap(soon to be bitmap and image) support transparency"

what do you mean by that...? just wondring.....

(\__/) HHAHAHAHAHAH!
(O.o ) / WORLD DOMINATION!!!!!!!!!!
(> < )

Back to top

Profile PM

Caleb1994

15

Years of Service

User Offline

Joined: 10th Oct 2008

Location: The Internet you idiot!

Posted: 3rd Oct 2009 02:30 Edited at: 3rd Oct 2009 03:49

Link

I posted the functions, and here's the code i used.

+ Code Snippet

sync on
sync rate 0
set display mode 640,480,32


load dll "db drawing.dll",255

Load bitmap "test.bmp",2
create bitmap 1,bitmap width(2),Bitmap Height(2)
copy bitmap 2,1
sync
delete bitmap 2
set current bitmap 0

InitDrawing()
do
   print screen fps()
   AddBitmap(100, 100, 1, rgb(255,255,255))
   AddBox(300, 200, 500, 300, rgb(255,0,255))
   AddPoint(0,0,rgb(0,0,255))

   t = timer()
   draw()
   print timer()-t
   sync
   cls
loop

Wait! i forgot! i havn't put 16 bit support in yet! you have to use Set display mode width,height,32

Display mode support, line function and support for multiple bitmap editing(other then just the backbuffer) are my next tasks.

Oh and test.bmp was just random boxes i drew in paint haha

Edit:

Dark Dragon:

Lets say you have a image that has a person on it with a pink background. well you only want to display that person not the pink background so you set the transparency to pink and all pixels with that color aren't shown. as simple as that! haha

Edit2:

Question! How does db store all three color values in a word????? thats only 2 bytes! i know ashinga has done it

New Site! Check it out \/

Back to top

Profile PM Website

Caleb1994

15

Years of Service

User Offline

Joined: 10th Oct 2008

Location: The Internet you idiot!

Posted: 3rd Oct 2009 07:31 Edited at: 3rd Oct 2009 20:52

Link

Now supports pasting bitmaps and images, plus you can use partial transparency. so you can see through the image. you can specify a float number from 0.0 to 1.0(0.01,0.1,0.05...) will post a updated dll and functions tomorrow.

hey by the way, if anyone here is interested please tell me otherwise i'm wasting my time posting it here

Edit:

I know this is the db board but, i have a question and it's pretty simple. here is my color transition code:

+ Code Snippet

unsigned long Transition(unsigned long c1, unsigned long c2, float percent)
{
	unsigned char r1 = LOBYTE(HIWORD(c1)), g1 = HIBYTE(LOWORD(c1));
	unsigned char b1 = LOBYTE(HIWORD(c1)), r2 = LOBYTE(HIWORD(c2));
	unsigned char g2 = HIBYTE(LOWORD(c2)), b2 = LOBYTE(HIWORD(c2));

	double nr = (r2 - r1)*(percent/100) + r1;
	double ng = (g2 - g1)*(percent/100) + g1;
	double nb = (b2 - b1)*(percent/100) + b1;
	
	unsigned long nc = RGB(nr,ng,nb);

	return nc;
}

if that doesn't make sense. r1, r2, g1, g2, b1, b2 are just the r g and b values for c1 and c2. nr, ng, and nb are new red new green, new blue. but it is messing up my colores(red is coming out pink and yellow is coming out whitish gray. although it is transparent it is just changing my colors.

double = a float
unsigned long = dword
unsigned char = byte

the reason i'm using double is because the compiler was complaining with warnings about assigning a double to a unsigned char so i just changed it. had the same effect when it was a unsigned char.

Edit2:

Nevermind. it was the LOWORD, LOBYTE stuff. i don't know how i was doing it wrong but i found the GetRValue macros that i didn't know windows had

so it's solved

New Site! Check it out \/

Back to top

Profile PM Website

Sorry your browser is not supported!

DarkBASIC Discussion / Drawing dll

Attachments