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/*
* Mesa 3-D graphics library
* Version: 3.4
* Copyright (C) 1995-1998 Brian Paul
*
* 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.
*/
/*
* DOS/DJGPP glut driver v1.5 for Mesa
*
* Copyright (C) 2002 - Borca Daniel
* Email : dborca@yahoo.com
* Web : http://www.geocities.com/dborca
*/
#include "glutint.h"
typedef struct {
void (*func) (int); /* function to call */
int value; /* value to pass to callback */
int ttl; /* time to live (blank shots) */
int fid; /* func-id as returned from PCHW */
} GLUTSShotCB;
GLUTidleCB g_idle_func = NULL;
static void g_single_shot_callback (void *opaque)
{
GLUTSShotCB *cb = (GLUTSShotCB *)opaque;
if (!--cb->ttl) {
cb->func(cb->value);
pc_remove_int(cb->fid);
/* We won't be needing this slot anymore, so free it. This operation
* must be the last thing, and must be atomic, to mutex `glutTimerFunc'
*/
cb->func = NULL;
}
} ENDOFUNC(g_single_shot_callback)
void APIENTRY glutDisplayFunc (GLUTdisplayCB func)
{
g_curwin->display = func;
}
void APIENTRY glutReshapeFunc (GLUTreshapeCB func)
{
g_curwin->reshape = func;
}
void APIENTRY glutKeyboardFunc (GLUTkeyboardCB func)
{
g_curwin->keyboard = func;
}
void APIENTRY glutMouseFunc (GLUTmouseCB func)
{
g_curwin->mouse = func;
}
void APIENTRY glutMotionFunc (GLUTmotionCB func)
{
g_curwin->motion = func;
}
void APIENTRY glutPassiveMotionFunc (GLUTpassiveCB func)
{
g_curwin->passive = func;
}
void APIENTRY glutEntryFunc (GLUTentryCB func)
{
g_curwin->entry = func;
}
void APIENTRY glutVisibilityFunc (GLUTvisibilityCB func)
{
g_curwin->visibility = func;
}
void APIENTRY glutWindowStatusFunc (GLUTwindowStatusCB func)
{
}
void APIENTRY glutIdleFunc (GLUTidleCB func)
{
g_idle_func = func;
}
void APIENTRY glutTimerFunc (unsigned int millis, GLUTtimerCB func, int value)
{
static GLUTSShotCB g_sscb[MAX_SSHOT_CB];
static int virgin = GL_TRUE;
int i;
int ttl;
unsigned int freq;
if (virgin) {
virgin = GL_FALSE;
LOCKDATA(g_sscb);
LOCKFUNC(g_single_shot_callback);
/* we should lock the callee also... */
}
if (millis > 0) {
if (millis > 50) {
/* don't go beyond 20Hz */
freq = 200;
ttl = millis * freq / 1000;
} else {
freq = 1000 / millis;
ttl = 1;
}
for (i = 0; i < MAX_SSHOT_CB; i++) {
if (g_sscb[i].func == NULL) {
/* We will be needing this slot, so alloc it. This operation
* must be the first thing, and must be atomic, to mutex callbacks!
*/
g_sscb[i].func = func;
g_sscb[i].value = value;
g_sscb[i].ttl = ttl;
/* There is a very small gap here: `pc_install_int' enables
* interrupts just before returning FID value (which will be
* used inside callback). The critical gap is 1 millisecond
* - which I'm sure we won't overrun...
*/
g_sscb[i].fid = pc_install_int((PFUNC)func, &g_sscb[i], freq);
if (g_sscb[i].fid < 0) {
/* Interrupt could not be set! Release the slot back */
g_sscb[i].func = NULL;
}
break;
}
}
}
}
void APIENTRY glutSpecialFunc (GLUTspecialCB func)
{
g_curwin->special = func;
}
void APIENTRY glutSpaceballMotionFunc (GLUTspaceMotionCB func)
{
}
void APIENTRY glutSpaceballRotateFunc (GLUTspaceRotateCB func)
{
}
void APIENTRY glutSpaceballButtonFunc (GLUTspaceButtonCB func)
{
}
void APIENTRY glutDialsFunc (GLUTdialsCB func)
{
}
void APIENTRY glutButtonBoxFunc (GLUTbuttonBoxCB func)
{
}
void APIENTRY glutTabletMotionFunc (GLUTtabletMotionCB func)
{
}
void APIENTRY glutTabletButtonFunc (GLUTtabletButtonCB func)
{
}
void APIENTRY glutJoystickFunc (GLUTjoystickCB func, int interval)
{
}
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