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Amiga Format CD 52
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Amiga Format AFCD52 (Issue 136, May 2000).iso
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mesa
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mesa-glut
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src-glut.aos
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glutlayers.c
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2000-02-23
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/*
* Amiga GLUT graphics library toolkit
* Version: 1.1
* Copyright (C) 1998 Jarno van der Linden
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* glutLayers.c
*
* Version 1.0 27 Jun 1998
* by Jarno van der Linden
* jarno@kcbbs.gen.nz
*
*/
#include <inline/dos.h>
#include <stdlib.h>
#include "glutstuff.h"
BOOL overlayed = FALSE;
int glutLayerGet(GLenum param) {
switch (param) {
case GLUT_OVERLAY_POSSIBLE:
return 0;
case GLUT_LAYER_IN_USE:
return -1;
case GLUT_HAS_OVERLAY:
return overlayed;
case GLUT_TRANSPARENT_INDEX:
if (overlayed)
return -1;
else
return -1;
case GLUT_NORMAL_DAMAGED:
return -1;
case GLUT_OVERLAY_DAMAGED:
if (overlayed)
return -1;
else
return -1;
default:
Printf("invalid glutLayerGet param: %ld\n", param);
break;
}
return -1;
}
void glutUseLayer(GLenum layer) {
switch (layer) {
case GLUT_NORMAL:
break;
case GLUT_OVERLAY:
default:
Printf("glutUseLayer: unknown layer, %ld\n", layer);
break;
}
}
void glutRemoveOverlay(void) {
}
void glutEstablishOverlay(void) {
}
void glutShowOverlay(void) {
if(!overlayed)
Printf("glutOverlayDisplayFunc: window has no overlay established\n");
}
void glutHideOverlay(void) {
if(!overlayed)
Printf("glutOverlayDisplayFunc: window has no overlay established\n");
}
void glutPostOverlayRedisplay(void) {
glutPostRedisplay();
}
void glutPostWindowOverlayRedisplay(int win) {
glutPostWindowRedisplay(win);
}
void glutOverlayDisplayFunc(void (*func)(void)) {
if(!overlayed)
Printf("glutOverlayDisplayFunc: window has no overlay established\n");
else if (glutstuff.curwin);
glutstuff.curwin->overlaydisplayfunc = func;
}