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r_dlight_max can now safely be 0

This commit is contained in:
Bill Currie 2001-10-09 21:50:51 +00:00
parent fda073acb6
commit a65d98a35c
1 changed files with 14 additions and 9 deletions
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19
libs/video/renderer/r_light.c
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@ -57,15 +57,13 @@ unsigned int r_maxdlights;
void
R_MaxDlightsCheck (cvar_t *var)
{
// FIXME: 1 minimum should be 0, if it doesn't require excess testing in
// *_rsurf.c
if (r_dynamic)
r_maxdlights = max(var->int_val * r_dynamic->int_val, 1);
else
r_maxdlights = max(var->int_val, 1);
r_maxdlights = max(var->int_val, 0);
if (r_dlights)
free (r_dlights);
r_dlights=0;
if (r_maxdlights)
r_dlights = (dlight_t *) calloc (r_maxdlights, sizeof (dlight_t));
R_ClearDlights();
@ -433,6 +431,12 @@ R_AllocDlight (int key)
{
int i;
dlight_t *dl;
static dlight_t dummy;
if (!r_maxdlights) {
memset (&dummy, 0, sizeof (dummy));
return &dummy;
}
// first look for an exact key match
if (key) {
@ -483,5 +487,6 @@ R_DecayLights (double frametime)
void
R_ClearDlights (void)
{
memset (r_dlights, 0, sizeof (r_dlights));
if (r_maxdlights)
memset (r_dlights, 0, r_maxdlights * sizeof (dlight_t));
}