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/***********************************************************************
FONCTION :
----------
file OpenGl_togl_begin.c :
REMARQUES:
----------
HISTORIQUE DES MODIFICATIONS :
--------------------------------
xx-xx-xx : CAL ; Creation.
21-01-97 : CAL : Ajout temporaire d'un XSynchronize pour
eviter un SEG V lors de la destruction d'une vue.
05-02-97 : FMN ; Suppression de OpenGl_tgl_vis.h
25-03-97 : CAL : getenv de CSF_GraphicSync
04-11-97 : FMN : ajout InitExtensionGLX();
17-03-98 : FMN ; Ajout mode animation
24-11-98 : FMN ; Correction sur la gestion de la perspective (cf Programming Guide)
22-12-98 : FMN ; Rename CSF_WALKTHROW en CSF_WALKTHROUGH
08/04/02 : GG ; RIC120302 Add call_togl_begin_display() function
************************************************************************/
#define G003 /* GG 25-01-00 Enable animation always ...
// See V3d_View::SetAnimationMode()
*/
/*----------------------------------------------------------------------*/
/*
* Includes
*/
#include <stdlib.h>
#include <OpenGl_tgl_all.hxx>
#include <InterfaceGraphic_Graphic3d.hxx>
#include <InterfaceGraphic_Visual3d.hxx>
#include <OpenGl_tgl.hxx>
#include <OpenGl_tgl_tox.hxx>
#include <OpenGl_tgl_funcs.hxx>
#include <OpenGl_Extension.hxx>
#include <OpenGl_animation.hxx>
/*----------------------------------------------------------------------*/
/*
* Variable globales
*/
EXPORT GLboolean env_walkthrow = GL_FALSE;
/* OCC18942: The new symmetric perspective projection matrix is off by default */
EXPORT GLboolean env_sym_perspective = GL_FALSE;
/*----------------------------------------------------------------------*/
/*
Opens and initialises Graphic Library environment.
Returns true if the Graphic Library environment is open.
Returns false if the Graphic Library environment is closed (error).
*/
int EXPORT
call_togl_begin
(
char *adisplay
)
{
char *pvalue;
call_togl_set_environment (adisplay);
#ifndef WNT
if ((pvalue = getenv ("CSF_GraphicSync")) != NULL)
XSynchronize (call_thedisplay, 1);
InitExtensionGLX(call_thedisplay);
#endif
/* Test si mode workthrough oui/non */
if ((pvalue = getenv ("CSF_WALKTHROUGH")) != NULL)
env_walkthrow = GL_TRUE;
/* Activation/Desactivation du mode Animation */
#ifndef G003
if ((pvalue = getenv ("CALL_ANIMATION")) != NULL)
animationUseFlag = GL_TRUE;
else
animationUseFlag = GL_FALSE;
#endif
/* OCC18942: Test if symmetric perspective projection should be turned on */
if ((pvalue = getenv ("CSF_SYM_PERSPECTIVE")) != NULL)
env_sym_perspective = GL_TRUE;
call_togl_inquirefacilities ();
call_func_init_tgl ();
return (1);
}
/*RIC120302*/
/*
Sets the Graphic Library environment.
Returns true if the Graphic Library environment is open.
Returns false if the Graphic Library environment is closed (error).
*/
int EXPORT
call_togl_begin_display
(
void *pdisplay
)
{
int status;
status = call_tox_set_display (pdisplay);
if( status ) {
#ifndef WNT
char *pvalue = NULL;
if ((pvalue = getenv ("CSF_GraphicSync")) != NULL)
XSynchronize (call_thedisplay, 1);
InitExtensionGLX(call_thedisplay);
#endif
call_togl_inquirefacilities ();
call_func_init_tgl ();
}
return (status);
}
/*RIC120302*/
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