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Starting with EasySDL

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Betreff des Beitrags: Starting with EasySDL

Verfasst: So Feb 11, 2007 11:14

DGL Member

Registriert: So Jan 28, 2007 20:31
Beiträge: 6

Hello:
I'm i newbie on this area and have some problems with EasySDL. I'm modifying the template, changing things, adding others, but can't set fullscreen. I tried to set FULL_SCREEN const to TRUE on EasySDL.pas but don't work, and add MyProgram.SetDisplay(800,600,TRUE) before MyProgram.Create, between MyProgram.Create and MyProgram.Start, after MyProgram.Start, and so on until before MyProgram.Stop. The first time i get an SDL error, because i changed it before construct it, but the next ones, SetDisplay don't work, it stays with 640*480 default size. How can i use SetDisplay method correctly? Or is there another way? I don't want to set it calling SDL directly because it's like use a hammer, and want to do the rigth way.

Code:

 
//Tried here Error
MyProgram := TMyProgram.Create('www.delphigl.com .:. Template');
//Tried here
  MyProgram.Start;
//Tried here
  Color.r:=255;//Tried here
  Color.g:=255;//Tried here
  Color.b:=255;//Tried here
  Color.unused:=0;//Tried here
 
  MyProgram.FPSFont:=TFont.Create(DATA_LOC+'fonts/monofont.ttf',16, Color, 0);//Tried here
  Textures.Load(DATA_LOC+'gfx/wiki.jpg','Wiki');//Tried here
 
  MyProgram.Loop;//Tried here
  MyProgram.Stop;

Thanks

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Gowen

Betreff des Beitrags:

Verfasst: So Feb 11, 2007 13:22

DGL Member

Registriert: So Jan 28, 2007 20:31
Beiträge: 6

I also tried to modify EasySDL code, in TEasySDL.InitSDL method, changing

Code:

videoFlags := SDL_OPENGL or SDL_DOUBLEBUF or SDL_HWPALETTE;

Code:

videoFlags := SDL_OPENGL or SDL_DOUBLEBUF or SDL_HWPALETTE or SDL_FULLSCREEN;

as Jedi-SDL documentation says but nothing changes, perhaps it's hardcoded on another site, but changing consts

Code:

const
  DEFAULT_WINDOW_WIDTH   = 640;
  DEFAULT_WINDOW_HEIGHT  = 480;
  DEFAULT_WINDOW_BPP     = 32;
 
  DEFAULT_WINDOW_CAPTION  = 'www.delphigl.com';
  DEFAULT_WINDOW_ICON     = '../data/gfx/dgl_icon.png';
 
  WINDOW_FULLSCREEN = FALSE;
  WINDOW_RESIZE   = FALSE;

don't work, nor width, height, nor fullscreen :(

Also i forgot to say that i use Freepascal 2.0.4, and DGLSDK 2006.1 under WinXP but will compile code also under FreeBSD6 later.

Thanks[/pascal]

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i0n0s

Betreff des Beitrags:

Verfasst: Mo Feb 12, 2007 10:39

Ernährungsberater

Registriert: Sa Jan 01, 2005 17:11
Beiträge: 2068
Programmiersprache: C++

That with Fullscreen seems to be left on the road will coding.
You have to add the following code before SDL_SetVideoMode:

Code:

 
  if WINDOW_FULLSCREEN then
    videoFlags := videoFlags or SDL_FULLSCREEN;
 
  if WINDOW_RESIZE then
    videoFlags := videoFlags or SDL_RESIZABLE;

This solve this problem for me.
I hope it will be fixed in the next release.

_________________
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Gowen

Betreff des Beitrags:

Verfasst: Mi Feb 14, 2007 00:36

DGL Member

Registriert: So Jan 28, 2007 20:31
Beiträge: 6

Now fullscreen works, but i found what seems an error. Citing JEDI-SDL help docs (included on dglsdk 2006.1)

Zitat:

if you wish to use double buffering you must specify it as a GL attribute, not by passing the SDL_DOUBLEBUF flag to SDL_SetVideoMode.

But EasySDL code does

Code:

videoFlags := SDL_OPENGL or SDL_DOUBLEBUF or SDL_HWPALETTE;

and

Code:

  SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);

some lines below, so it's using 2 times a double buffer.

Erasing SDL_DOUBLEBUF makes few fps more (from 680 avg to 695 avg) on simple scenes, perhaps it's unnoticiable on complex ones.

Also i have updated EasySDL with a new creator for manage Width, Height, FullScreen and Resizable, and fps average.

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i0n0s

Betreff des Beitrags:

Verfasst: Mi Feb 14, 2007 14:41

Ernährungsberater

Registriert: Sa Jan 01, 2005 17:11
Beiträge: 2068
Programmiersprache: C++

Thanks for the correction.
Can you send me the corrected code, so I can update it in the SVN?

_________________
Steppity,✲steppity,✴step,❆step,✳step! :twisted:

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❅ ☃ ❄ ❄ ❄ ❅ ❄ ❄ ❄ ❅ ❄ ☃ ❄ ❆ ❄ ❄

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Gowen

Betreff des Beitrags:

Verfasst: Do Feb 15, 2007 12:45

DGL Member

Registriert: So Jan 28, 2007 20:31
Beiträge: 6

I sended you a pm with the url where is my EasySDL.pas version. Don't know if i break other things, as i don't know OpenGL.

HTH

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i0n0s

Betreff des Beitrags:

Verfasst: Do Feb 15, 2007 15:08

Ernährungsberater

Registriert: Sa Jan 01, 2005 17:11
Beiträge: 2068
Programmiersprache: C++

I've read the PM and took the code into the svn, no code breaks happened.
But I simple forgot to answer your PM, so sorry for that and thanks for the code.

_________________
Steppity,✲steppity,✴step,❆step,✳step! :twisted:

❆ ❄ ❄ ❄ ❅ ❄ ❆ ❄ ❅ ❄ ❅ ❄ ❅ ❄ ❄
❅ ☃ ❄ ❄ ❄ ❅ ❄ ❄ ❄ ❅ ❄ ☃ ❄ ❆ ❄ ❄

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