[release] lte lite mod

[Brick]

... * ... | ... ; ... -..... -%...^

Yeah , you guessed right... i finally found the time to share my LTE LITE MOD!

Those who have tried in the past to develop games with LTE , they probably know that
its nearly "impossible" to create a full featured game without suffering from low fps.

This mod improves the rendering part , and actually turns Irrlicht port into a clean and fast renderer(well,as it could be
with this old pspgl driver).

Anyway , here's the changelog:

LTE LITE MOD V1.2 BY BRICK

Spoiler:

AUTHOR
Brick :: Dev

GENERAL
1.Removed GUI
2.Removed the buggy AUDIO
3.Removed NETWORK DRIVER
4.Removed all input related code
5.Removed 1.41 mb of static pre-allocated tables
6.Removed internal timer that seems to trying to "lock" the renderer
after 10' have passed( WHAT THE H? ).
7.Removed logger
8.Removed all examples(they are not compatible , since they are all require the gui env/input)

NEW MODULES
1. ITextureFont class ( my texture font class )


DEVICE CHANGES
1. Removed of couple unused variables/defines/static tables
2. All input gargabe have been removed
3. All useless drivers that have been removed are now null
4. Removed functions
5. Disabled audio,cursor, and audio/network modules aren't loaded.
Overall the "run" function is just a few ops(it used to be a couple of hundreds useless ops).

DRIVER NEW FUNCTIONS

1.Added removeAllTexturesExcept(const core::array<core::stringc>& exceptionList) which
removes textures with exceptions

2.video::ITexture* findTextureByName(const c8* filename)
With this you can figure out if a texture exists WITHOUT letting
the driver to load it.

3.Replaced a line in "findTexture".
this :

	if (!filename)
		filename = "";

with this:

	if (!filename)
		return 0; //filename = ""; <-- brick

SOFTWARE DRIVER CHANGES

1. Modified depth range(misc)
2. Replaced some int divisions with binary divisions(that were possible)
3. Vertex stack allocation is now static and pre-allocated, not like it used to be dynamic on each frame(!)...
This indeed requires a bit more memory , but since i've removed so much memory from other modules,
its really nothing important.
4. Optimized some mul & div operations (eg color + inv @glClearColorOptimized()) that could be avoided.
5. Removed a few opengl states
6. Optimized some opengl states(eg ,in some cases, some states were used 2 times in 1 call)
7. Removed all input(DUHHHHHHHHHH...) related code from the software driver
8. Replaced glblendfuncPspFix with glBlendFunc
9. Removed logo static data
10. Removed logo sfx
11. Removed the counter that locks the app after 10' of use if the logo flag is false
12. Removed cursor,selectors and keys...OMG
13. Removed "files/audioIntro.c" ...most-wasted 321kb ever
14. Removed "files/logo.h" ... + 110kb
15. Removed many unused variables
16. Removed cursor data .... +10kb
17. Removed all included files with static data from \\files\\ dir
(With all these we get AT LEAST + 1.4mb available memory!)
18. Optimized interpolate ( BspClipVertex *out, ...) ,and now the color extraction is done only if (and where) needed.
19. Some misc optimizations to functions
20. Some types needed to be passed by reference
21. Aligned some static buffers
22. Removed from beginScene() a block of code that makes no sense and just renders a red quad 480x272...
(probably trying to cull out color bits from stencil ops ???????)
23. Added static inline void updateGLColorOptimized(GLfloat* in)
24. Added static inline void glClearColorOptimized(const SColor& color)
25. Re-written "inline void interpolate ( BspClipVertex *out, const BspClipVertex *b, const BspClipVertex *a, f32 inv)"
And now it gives a NICE speed boost when rendering a bsp mesh (in most cases).
The color extraction is done only when needed , and in steps

DEVICE STUB

1.Removed gui env
2.Muted : postEventFromUser()
3.Muted : setEventReceiver()
4.checkVersion() will return true to avoid crash since there is no logger anymore


PARTICLE SYSTEM CHANGES

1. Particles are pre-allocated now (gives a NICE speed boost)
2. Point emitter finally works

Projects officially using LTE LITE MOD

Spoiler:

1. PSPMarble : Orchestra Sensation by Brick ( me :-P )
For more info , check this out : http://www.psp-hacks.com/forums/f141...ation-t239848/

2. Light Cycle 3d by SG57
For more info , check this out : http://www.psp-hacks.com/forums/f141...le-3d-t239956/

Download links

Spoiler:

http://www.sendspace.com/file/ft5url

DEMOS

Spoiler:

Demo 1 : Rendering 2d images & text

DL : http://www.sendspace.com/file/ncfw9h

That's all , i hope that its going to be used by other devs as;well:-)!.

[pspjoke]

fkn sweet.
as soon as i move on to 3d games, ill give this a shot.
with all that cut out tho, it seems like it will be a pain to port a game using pure irrli...wtf ever its called.

but creating a game specifically for the psp shouldn't be a problem.

thanks Brick.

[Dark Chazz]

Thanks Brick!

My game will surely run at 59~60 fps with this , on the old rubbish LTE I get 19~29 fps
btw , if there will be a voting poll , I'll give my vote to PSPMarble
EDIT: Voted!

[pirata nervo]

Thanks for posting this Brick, I will add this to the mega thread once I have tried all entries for the 10th time

[Brick]

@Dark chazz :
That's good to know , and thanks for posting your results(edit : oh , i read it wrong(or you edited your post?) : you actually plan to develop a game ...my bad :-P...)...and i really hope that we're going to see more devs develop games with LTE LM.

Edit : there's a little mistake in the changelog , the new module , is "ITextureFont" , and not "ITexture"!.
Its my own texture font class implementation(based on irr gui) , and you should all use the "renderOptimized()" method.

				void renderOptimized(const wchar_t* text,
									 const core::position2d<s32>& pos,
									 const video::SColor& color,
									 const u32 deltaTime = 0,
									 const bool frameIdp = false);

[Dark Chazz]

I'm gonna port my game from LTE.
Do I have to change anything related to scene manager or it's all the same as the old "JOKE" ?

[Brick]

Originally Posted by Dark Chazz

I'm gonna port my game from LTE.
Do I have to change anything related to scene manager or it's all the same as the old "JOKE" ?

Well , simple stuff :

*Do a clean installation of headers , because more have been added , and many have been modified
*Remove gui / events / audio / network /logger related stuff.
*FPS camera will not work , just create a default camera scene node , and apply your transformations there.
*For static meshes , push DMA material flag , and disable flushing (it might give a speed boost...might not)
and don't forget to also push the clipping flag.(also DEPTHLESS flag might help ... in some cases)
*Do NOT access the cursor control , its totally muted.
*If you use custom scene nodes , pack your vertices into a large mesh buffer(splitted if its quite big)
*To render text , use my ITextureFont class.
A simple example :

ITextureFont font(driver);
font.load( file or stream in VFS );

Optimized rendering :
font.renderOptimized(L"Text", position , color );

or frame idp :
font.renderOptimized(L"Text", position , color ,dt,true);

or if you need clipping and stuff , simply use the render() method.

[Dark Chazz]

Originally Posted by Brick

*FPS camera will not work , just create a default camera scene node , and apply your transformations there.

That's what I wanted to know because I was using the FPS camera and it doesn't work lol.

Thanks again!

[SG57]

Awesome-ness

And hey Brick - i recompiled Light Cycle v3 with this and got a small boost, check it out:

Spoiler for screen:

[Brick]

Yeah , mainly because of the improved particle system...there's almost no delay at all when particles are spawned into the world.

Edit : also i think you still had the old revision ?

Edit#2 : BTw , soon i plan to replace the opengl driver with the native one :-)...