ImageKit problem - GameCreators Forum

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AGL

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Joined: 13th Jan 2008

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Posted: 28th Dec 2010 18:32

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Hey everyone,

Im having some problems with the usage of IK paste image on image rotated command.
If I use the command without the rotated tag, everything works fine, my pasted textures are pasted where they supposed to,
but when i try this, nothing happens apparently. Can anyone help me if I do something wrong or if there is some speciality in this command?

here's what i have:

+ Code Snippet

IK paste image on image rotated Texture_NPC(oNPC(n).species, oNPC(n).Action, oNPC(n).frm_max), Texture_Ground, object position x(oNPC(n).index) ,object position y(oNPC(n).index), 45.0

I use ImageKit v2.

Thanks in advance

"The business in the business is the business"

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Sven B

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Joined: 5th Jan 2005

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Posted: 28th Dec 2010 19:30

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Hi AGL,

I guess the Texture_Ground isn't a target image. As it says in the help files:

Quote: "If Target Image is not a target image, this command will be ignored."

(I admit my I should have chosen better parameter names though)
IK paste image on image works for normal --> normal/target images and target --> target images, which is why it worked without the rotated tag.

You can convert a normal image to a target image by using, the 2 commands:

+ Code Snippet

IK create target image TargetImg, image width(SourceImg), image height(SourceImg)
`IK set blend mode BLEND_FORCE
IK paste image on image SourceImg, TargetImg, 0, 0

I hope it helped,
Sven B

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AGL

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Posted: 28th Dec 2010 19:54

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Yeah it basicly works, but first it messed up my texture, second it was working but now it says 'cannot copy image to itself' :S

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Sven B

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Posted: 28th Dec 2010 20:09 Edited at: 28th Dec 2010 20:10

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Yes, you need to copy that image to another image.

Target images are only accessible by the GPU, normal images are accessible by CPU and GPU. Conversion between the two isn't as simple as you might imagine because of that restriction.

If you want to load an image as a target image, you might want to write a function like this:

+ Code Snippet

function LoadTargetImage(url$, img)
    `Find a free image
    tmp = img
    repeat
        inc tmp
    until image exist(tmp) = 0

    ` Load image and paste to img
    load image url$, tmp
    IK create target image img, image width(tmp), image height(tmp)
    IK set blend mode BLEND_FORCE
    IK paste image on image tmp, img, 0, 0

    `Clear resources
    delete image tmp
endfunction

I know it looks like a roundabout way, but it would be basically the same as if I would have had to code it in the DLL.

A Conversion function would be:

+ Code Snippet

function ConvertToTargetImage(Source)
    `Find free image
    tmp = 0
    repeat
        inc tmp
    until image exist(tmp) = 0

    `Copy image, delete old and create target image
    IK copy image tmp, Source
    delete image Source
    IK create target image Source, image width(tmp), image height(tmp)
    IK set blend mode BLEND_FORCE
    IK paste image on image tmp, Source, 0, 0

    `Clear resource
    delete image tmp
endfunction

Cheers!
Sven B

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AGL

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Posted: 29th Dec 2010 17:24

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Man thank you very much for your help! Tho I had to refine the function according to my needs, but now its working perfectly!

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Sven B

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Posted: 29th Dec 2010 20:03

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I'm glad I could help.

You made me realize it might be better to produce an error when an ImageKit command is incompatible with a certain type of image... So I think it's time I made a small update.

Cheers!
Sven B

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AGL

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Posted: 30th Dec 2010 03:13

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I think something is really not right. How can I safely remove the target images and the original textures from an object?
Whatever I try to do with the target image (or apparently independent other things) I get a huge blue screen of death and my pc instantly reboots :/ Its only on certain events though:

function Reboot()
//reboots the game
local i as integer

for i = 1 to 99999
   if object exist(i)=1 then delete object i
   if image exist(i)=1 then delete image i
   if sound exist(i)=1 then delete sound i
   if music exist(i)=1 then delete music i
   if sprite exist(i)=1 then delete sprite i
next i

flush video memory

Initialize()
if AE_Intro = 1 then Splash_Screen()
Load_Medias()
Create_Main_Menu()

endfunction

function Initialize()
//Initialize
set dir get dir$()
hide mouse
position mouse 0,0

Load_Settings()

sync on: sync rate 90
set display mode AE_ScrW, AE_ScrH, AE_ScrD, 1
backdrop on: color backdrop rgb(0,0,0)

autocam off
disable escapekey

set camera range 1, 10000
position camera 0, 0, Camera_Work_Distance

endfunction

function Load_Medias()
//Load everything here (images, sounds, musics ect)
load image get dir$() + "\GFX\Textures\dirt.png", Texture_Dirt
load image get dir$() + "\GFX\Textures\grass.png", Texture_Grass
load image get dir$() + "\GFX\Textures\sand.png", Texture_Sand
load image get dir$() + "\GFX\Textures\snow.png", Texture_Snow
     Create_Target_Texture(Texture_Dirt)
     Create_Target_Texture(Texture_Grass)
     Create_Target_Texture(Texture_Sand)
     Create_Target_Texture(Texture_Snow)
...

+ Code Snippet

function Reboot()
//reboots the game
local i as integer

for i = 1 to 99999
   if object exist(i)=1 then delete object i
   if image exist(i)=1 then delete image i
   if sound exist(i)=1 then delete sound i
   if music exist(i)=1 then delete music i
   if sprite exist(i)=1 then delete sprite i
next i

flush video memory

Initialize()
if AE_Intro = 1 then Splash_Screen()
Load_Medias()
Create_Main_Menu()

endfunction

function Initialize()
//Initialize
set dir get dir$()
hide mouse
position mouse 0,0

Load_Settings()

sync on: sync rate 90
set display mode AE_ScrW, AE_ScrH, AE_ScrD, 1
backdrop on: color backdrop rgb(0,0,0)

autocam off
disable escapekey

set camera range 1, 10000
position camera 0, 0, Camera_Work_Distance

endfunction

function Load_Medias()
//Load everything here (images, sounds, musics ect)
load image get dir$() + "\GFX\Textures\dirt.png", Texture_Dirt
load image get dir$() + "\GFX\Textures\grass.png", Texture_Grass
load image get dir$() + "\GFX\Textures\sand.png", Texture_Sand
load image get dir$() + "\GFX\Textures\snow.png", Texture_Snow
     Create_Target_Texture(Texture_Dirt)
     Create_Target_Texture(Texture_Grass)
     Create_Target_Texture(Texture_Sand)
     Create_Target_Texture(Texture_Snow)
...

This function could be called anytime, its now called on every game start/restart:

+ Code Snippet

function Reset_Map()
//sets the current map

tg = rnd(3)+1
if tg = 1 then Texture_Ground = Texture_Dirt
if tg = 2 then Texture_Ground = Texture_Grass
if tg = 3 then Texture_Ground = Texture_Snow
if tg = 4 then Texture_Ground = Texture_Sand

texture object Plain_Main, Texture_Ground

endfunction

And finally here's the target image converter function which is only called in the Load_Medias function. Load_Medias is called only on boot/reboot of game i.e.: program start and after resolution setting:

+ Code Snippet

function Create_Target_Texture(iSource as integer)
//this function converts the map textures to target textures for IK pastes.

    tmp = 0
    repeat
        inc tmp
    until image exist(tmp) = 0

    IK copy image tmp, iSource
    delete image iSource
    IK create target image iSource, 1024, 1024
    IK paste image on image tmp, iSource, 0, 0

    delete image tmp
    
endfunction

I think this is my last problem regarding the topic, and the most important one.

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Sven B

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Location: Belgium

Posted: 30th Dec 2010 10:27

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AGL,

A BSoD is pretty severe. I'm not sure what could cause that. I'm not doing anything funny in the DLL (I strictly use DBP commands and Direct3D commands/structures).

Have you tried using Reset ImageKit when changing resolution? It's supposed to be used when changing resolution. I've never heard of it causing a Blue Screen of Death though...

If the problem persists and you really think ImageKit is causing it, then could you please send me the source code?
It would help the most if you could isolate the problem.

Sven B

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AGL

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Joined: 13th Jan 2008

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Posted: 30th Dec 2010 11:01

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Thanks for your help again. Looks like this single command solved my blue death problem. Just happend that I have some wierd errors after changing resolution:
It says 'object does not exist at line xy', although I'm sure as hell that they do exist. They are created after reboot of the program and are not even related to imagekit. They are object anyway, not even images so.. I don't understand.. but I think this is something that I can get rid of by myself

Thanks for the help, hopefully I won't get back here soon

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