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implemented glutTimerFunc

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This commit is contained in:
Daniel Borca 2004-01-15 08:30:05 +00:00
parent 0849ed1275
commit f8761dc040
2 changed files with 66 additions and 2 deletions
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64
src/glut/dos/callback.c
View file

@ -19,7 +19,7 @@
*/
/*
* DOS/DJGPP glut driver v1.3 for Mesa
* DOS/DJGPP glut driver v1.4 for Mesa
*
* Copyright (C) 2002 - Borca Daniel
* Email : dborca@yahoo.com
@ -31,10 +31,33 @@
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;
static GLboolean g_sscb_semaphore;
GLUTidleCB g_idle_func = NULL;
static void g_single_shot_callback (void *opaque)
{
GLUTSShotCB *cb = (GLUTSShotCB *)opaque;
while (g_sscb_semaphore) {
}
if (!--cb->ttl) {
cb->func(cb->value);
pc_remove_int(cb->fid);
cb->func = NULL;
}
} ENDOFUNC(g_single_shot_callback)
void APIENTRY glutDisplayFunc (GLUTdisplayCB func)
{
g_curwin->display = func;
@ -106,6 +129,45 @@ void APIENTRY glutIdleFunc (GLUTidleCB 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);
LOCKDATA(g_sscb_semaphore);
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;
}
g_sscb_semaphore++;
for (i = 0; i < MAX_SSHOT_CB; i++) {
if (g_sscb[i].func == NULL) {
int fid = pc_install_int((PFUNC)func, &g_sscb[i], freq);
if (fid >= 0) {
g_sscb[i].func = func;
g_sscb[i].value = value;
g_sscb[i].ttl = ttl;
g_sscb[i].fid = fid;
}
break;
}
}
g_sscb_semaphore--;
}
}

4
src/glut/dos/glutint.h
View file

@ -19,7 +19,7 @@
*/
/*
* DOS/DJGPP glut driver v1.4 for Mesa
* DOS/DJGPP glut driver v1.5 for Mesa
*
* Copyright (C) 2002 - Borca Daniel
* Email : dborca@users.sourceforge.net
@ -146,6 +146,8 @@ extern void *__glutFont(void *font);
#define MAX_WINDOWS 2
#define MAX_SSHOT_CB 10
#define RESERVED_COLORS 0
#endif /* __glutint_h__ */