display/display.h File Reference

Display manager. More...

#include <op.h>

Data Structures
struct	display
Functions
void	init_display_driver ()
void	show_display (display *d)
void	hide_display ()
void	wait_display_refresh ()
void	jump_gpu_subroutine (void *addr)
Variables
long	_GPU_FREE_RAM

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Detailed Description

Display manager.

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Function Documentation

void hide_display (   )

Hide display

void init_display_driver (   )

Initialises the display driver and the GPU subroutine manager.

void jump_gpu_subroutine (  void *  addr  )

Call a GPU subroutine in GPU ram. Parameters: addr  Address of the subroutine

void show_display (  display *  d  )

Show the given display. Parameters: d  display to be displayed

void wait_display_refresh (   )

Wait for the refresh of the current display to be completed. If there is no active display, this will enter a deadlock. This synchronisation mechanism is useful if you use functions that manipulate the active display (especially sort_display_layer). For this synchronisation mechanism to really work, you should have first initialised interrupts with init_interrupts since it uses the vblCounter variable.

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Variable Documentation

long _GPU_FREE_RAM

Free GPU ram is available at &_GPU_FREE_RAM.

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