BRL.GLGraphics
Functions
Function GLGraphicsDriver:TGLGraphicsDriver()
Get OpenGL graphics driver
The returned driver can be used with SetGraphicsDriver
Returns
An OpenGL graphics driver
Function GLGraphics:TGraphics( width:Int,height:Int,depth:Int=0,hertz:Int=60,flags:Long=GRAPHICS_BACKBUFFER|GRAPHICS_DEPTHBUFFER )
Create OpenGL graphics
This is a convenience function that allows you to easily create an OpenGL graphics context.
Returns
An OpenGL graphics object
Function GLAdjustTexSize( width:Int Var,height:Int Var )
Helper function to calculate nearest valid texture size
This functions rounds width and height up to the nearest valid texture size
Function GLTexFromPixmap:Int( pixmap:TPixmap,mipmap:Int=True )
Helper function to create a texture from a pixmap
pixmap is resized to a valid texture size before conversion.
Returns
Integer GL Texture name
Function GLDrawRect( x:Int,y:Int,width:Int,height:Int )
Helper function to output a simple rectangle
Draws a rectangle relative to top-left of current viewport.
Function GLDrawText( Text:String,x:Int,y:Int )
Helper function to output some simple 8x16 font text
Draws text relative to top-left of current viewport.
The font used is an internal fixed point 8x16 font.
This function is intended for debugging purposes only - performance is unlikely to be stellar.
Function GLDrawPixmap( pixmap:TPixmap,x:Int,y:Int )
Helper function to draw a pixmap to a gl context
Draws the pixmap relative to top-left of current viewport.
This function is intended for debugging purposes only - performance is unlikely to be stellar.
Function GLShareContexts()
Enable OpenGL context sharing
Calling GLShareContexts will cause all opengl graphics contexts created to shared displaylists, textures, shaders etc.
This should be called before any opengl contexts are created.