Use all OpenGL extensions with one include file.

Headers, Bindings, Libraries for use with FreeBASIC, Please include example of use to help ensure they are tested and usable.
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D.J.Peters
Posts: 8588
Joined: May 28, 2005 3:28
Contact:

Use all OpenGL extensions with one include file.

Post by D.J.Peters »

Over 400 OpenGL extension with more than 2,200 OpenGL comands as include file.

You can use all extensions from OpenGL

1.2/1.3/1.4/1.5
2.0/2.1
3.0/3.1/3.2/3.3
4.0/4.1/4.2/4.3/4.4

I can't post it here (more than 5,000 lines of code) right click save as "glextensions.bi"
download: glextensions.bi

All extensions are defined as shared GLboolean's.

if IS_GL_ARB_imaging=GL_TRUE then ...

if IS_GL_VERSION_2_0=GL_FALSE then
' no shader fixed render pipeline only
else
' use your funky shader stuff
endif

Joshy

Code: Select all

#include once "glextensions.bi"

#include "fbgfx.bi"
#if __FB_LANG__ = "fb"
using FB
#endif

screenres 640,480,32,,GFX_OPENGL
flip

if InitGLExtensions()=GL_FALSE then
  screen 0
  print "error: no active OpenGL context !"
endif

if IS_GL_VERSION_1_2 then
  ' ...
endif

if IS_GL_VERSION_1_3 then
  ' use multi textures (glActiveTexture ...)
endif

if IS_GL_VERSION_1_4 then
  ' ...
endif

if IS_GL_VERSION_1_5 then
  ' use all VBO stuff
else
  ' use glArray stuff instead
endif

if IS_GL_VERSION_2_0 then
  ' use GLSL stuff
else
  ' no shader fixed pipeline only
endif 

if IS_GL_VERSION_2_1 then
  ' ...
endif

if IS_GL_VERSION_3_0 then
  ' ...
endif

if IS_GL_VERSION_3_1 then
  ' ...
endif

if IS_GL_VERSION_3_2 then
  ' ...
endif

if IS_GL_VERSION_3_3 then
  ' ...
endif

if IS_GL_VERSION_4_0 then
  ' ...
endif

if IS_GL_VERSION_4_1 then
  ' ...
endif

if IS_GL_VERSION_4_2 then
  ' ...
endif

if IS_GL_VERSION_4_3 then
  ' ...
endif

if IS_GL_VERSION_4_4 then
  ' ...
endif
dim as single r,s=0.01
while inkey()=""
  glClearColor(r,0,0,1)
  glClear(GL_COLOR_BUFFER_BIT)
  r+=s
  if r<0 then
    r=0:s*=-1
  elseif r>1 then
    r=1:s*=-1
  endif  
  flip
  sleep 1
wend
Last edited by D.J.Peters on Oct 12, 2022 17:48, edited 4 times in total.
Haubitze
Posts: 44
Joined: May 20, 2016 8:42

Re: Use all OpenGL extensions with one include file.

Post by Haubitze »

nice peace of code, plz keep it up to date.
one suggestion, plz include an logger for aktivated extensions.

salute
D.J.Peters
Posts: 8588
Joined: May 28, 2005 3:28
Contact:

Re: Use all OpenGL extensions with one include file.

Post by D.J.Peters »

I uploaded a new version see first post.

All OpenGL Extensions are supported from OpenGL V1.0 - V4.4 (round about 400 extensions)
~2300 OpenGL commds are dynamic loaded bei the extension wrangler.

if IS_GL_VERSION_2_1 then
' ...
endif

if IS_GL_VERSION_3_2 then
' ...
endif

Joshy
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