alleggl.c File Reference

Allegro-OpenGL interfacing. More...

#include <string.h>
#include <stdlib.h>
#include "alleggl.h"
#include "allglint.h"
#include <allegro/internal/aintern.h>
#include <GL/glu.h>

Go to the source code of this file.

Macros
#define	PREFIX_I   "agl INFO: "
#define	PREFIX_E   "agl ERROR: "
#define	PREFIX_L   "agl LOG: "

Functions
static _DRIVER_INFO *	our_gfx_drivers (void)
static _DRIVER_INFO *	list_saved_gfx_drivers (void)
static BITMAP *	allegro_gl_default_gfx_init (int w, int h, int vw, int vh, int depth)
static void	build_settings (int opt, char *section, char *name)
static void	agl_parse_section (int sec, char *section, char *name)
int	install_allegro_gl (void)
	Installs the AllegroGL addon to Allegro. More...
void	remove_allegro_gl (void)
	Removes the AllegroGL addon. More...
void	allegro_gl_flip (void)
	Flips the front and back framebuffers. More...
float	allegro_gl_opengl_version ()
	Returns the OpenGL version number of the client (the computer the program is running on). More...
void	__allegro_gl_set_allegro_image_format (int big_endian)
void	allegro_gl_set_blender_mode (int mode, int r, int g, int b, int a)
Mode selection functions
void	allegro_gl_clear_settings (void)
	Clear the option settings All settings are set to their default values, and marked as neither suggested not required. More...
void	allegro_gl_set (int option, int value)
	Sets a configuration option. More...
int	allegro_gl_get (int option)
	Reads the setting of a configuration option. More...
void	allegro_gl_save_settings ()
	Saves the current settings (as specified by allegro_gl_set()) to the current config file, in the section [OpenGL]. More...
void	allegro_gl_load_settings ()
	Loads the settings from the current config file, in the section [OpenGL]. More...

Variables
struct allegro_gl_driver *	__allegro_gl_driver = NULL
struct allegro_gl_display_info	allegro_gl_display_info
int	__allegro_gl_required_settings
int	__allegro_gl_suggested_settings
int	__allegro_gl_valid_context = 0
int	__allegro_gl_blit_operation
char	allegro_gl_error [256] = EMPTY_STRING
BLIT_BETWEEN_FORMATS_FUNC	__blit_between_formats8
BLIT_BETWEEN_FORMATS_FUNC	__blit_between_formats15
BLIT_BETWEEN_FORMATS_FUNC	__blit_between_formats16
BLIT_BETWEEN_FORMATS_FUNC	__blit_between_formats24
BLIT_BETWEEN_FORMATS_FUNC	__blit_between_formats32
BITMAP *	allegro_gl_screen
	Direct-mode GL `screen' bitmap. More...
static _DRIVER_INFO	our_driver_list []
_DRIVER_INFO *(*	saved_gfx_drivers )(void) = NULL
GFX_DRIVER	gfx_allegro_gl_default

Detailed Description

Allegro-OpenGL interfacing.

This sorts out having Allegro and the OpenGL library sharing a window, and generally cooperating.

Definition in file alleggl.c.

Variable Documentation

BITMAP* allegro_gl_screen

Direct-mode GL `screen' bitmap.

If you draw to this bitmap (using supported Allegro functions) your calls will be converted into OpenGL equivalents and appear on the screen (or backbuffer).

Definition at line 62 of file alleggl.c.

_DRIVER_INFO our_driver_list[]

static

Initial value:

= {

    {  , &gfx_allegro_gl_windowed, FALSE},


    {  , &gfx_allegro_gl_fullscreen, FALSE},

    {  , &gfx_allegro_gl_default, FALSE},
    {0, NULL, FALSE}
}

Definition at line 67 of file alleggl.c.

GFX_DRIVER gfx_allegro_gl_default

Initial value:

=
{
     ,
   EMPTY_STRING,
   EMPTY_STRING,
   "AllegroGL Default Driver",
   allegro_gl_default_gfx_init,
   NULL,
   NULL,
   NULL,               
   NULL,
   NULL, NULL, NULL,
   NULL,        
   NULL,
   NULL, NULL,  
   NULL, NULL,
   NULL, NULL, NULL, NULL,
   NULL,
   NULL, NULL,
   NULL,        
   NULL,        
   0, 0,
   0,
   0, 0,
   0,
   0,
   FALSE        
}

Definition at line 102 of file alleggl.c.