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When requesting a non-fogged identity lookup from makepalookup(), alias to palookup[0].

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(That is, the base shade table.) Before, we allocated each palookup buffer.
For a vanilla setup, this means that we're now saving 224*32*256 ~= 1.8 megs,
which might be interesting for low-memory gadgets.

git-svn-id: https://svn.eduke32.com/eduke32@2571 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2012-03-29 21:17:35 +00:00
parent 98935fe7a9
commit 258c19f411
1 changed files with 11 additions and 2 deletions
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13
polymer/eduke32/build/src/engine.c
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@ -8022,7 +8022,10 @@ void uninitengine(void)
} }
for (i=0; i<MAXPALOOKUPS; i++) for (i=0; i<MAXPALOOKUPS; i++)
if (palookup[i] != NULL) { Bfree(palookup[i]); palookup[i] = NULL; } if (palookup[i] != NULL && (i==0 || palookup[i] != palookup[0]))
{
Bfree(palookup[i]);
}
#ifdef DYNALLOC_ARRAYS #ifdef DYNALLOC_ARRAYS
if (blockptr != NULL) if (blockptr != NULL)
@ -13424,6 +13427,12 @@ void makepalookup(int32_t palnum, const char *remapbuf, int8_t r, int8_t g, int8
if (remapbuf==NULL) if (remapbuf==NULL)
{ {
if ((r|g|b) == 0)
{
palookup[palnum] = palookup[0]; // Alias to base shade table!
return;
}
if (idmap[0]==1) // init identity map if (idmap[0]==1) // init identity map
for (i=0; i<256; i++) for (i=0; i<256; i++)
idmap[i] = i; idmap[i] = i;
@ -13431,7 +13440,7 @@ void makepalookup(int32_t palnum, const char *remapbuf, int8_t r, int8_t g, int8
remapbuf = idmap; remapbuf = idmap;
} }
if (palookup[palnum] == NULL) if (palookup[palnum] == NULL || palookup[palnum] == palookup[0])
{ {
//Allocate palookup buffer //Allocate palookup buffer
palookup[palnum] = Bmalloc(numshades<<8); palookup[palnum] = Bmalloc(numshades<<8);