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"This adds masked texture rendering support for slopes in classic renderer" 

git-svn-id: https://svn.eduke32.com/eduke32@7418 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
terminx 2019-03-19 17:09:03 +00:00
parent 7ccbd22013
commit ff8e54432b
1 changed files with 44 additions and 6 deletions
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50
source/build/src/engine.cpp
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@ -2751,7 +2751,7 @@ static void ceilscan(int32_t x1, int32_t x2, int32_t sectnum)
tsethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4);
break;
case 384:
setup_blend(0, 0);
setup_blend(0, 1);
tsethlineshift(picsiz[globalpicnum]&15,picsiz[globalpicnum]>>4);
break;
}
@ -3364,10 +3364,39 @@ static void tslopevlin(uint8_t *p, const intptr_t *slopalptr, bssize_t cnt, int3
int const i = (sloptable[(bz>>6)+8192]); bz += bzinc;
uint32_t u = bx + xtou*i;
uint32_t v = by + ytov*i;
uint8_t ch = *(uint8_t *)(slopalptr[0] + buf[((u>>(32-logx))<<logy)+(v>>(32-logy))]);
uint8_t ch = buf[((u>>(32-logx))<<logy)+(v>>(32-logy))];
if (ch != 255)
*p = trans[transmode ? *p|(pal[ch]<<8) : (*p<<8)|pal[ch]];
{
ch = *(uint8_t *)(slopalptr[0] + ch);
*p = trans[transmode ? *p|(ch<<8) : (*p<<8)|ch];
}
slopalptr--;
p += pinc;
}
while (--cnt);
}
// cnt iterations
static void mslopevlin(uint8_t *p, const intptr_t *slopalptr, bssize_t cnt, int32_t bx, int32_t by)
{
const char *const A_C_RESTRICT buf = ggbuf;
const char *const A_C_RESTRICT pal = ggpal;
const int32_t bzinc = (asm1>>3), pinc = ggpinc;
const uint32_t xtou = globalx3, ytov = globaly3;
const int32_t logx = gglogx, logy = gglogy;
int32_t bz = asm3;
do
{
int const i = (sloptable[(bz>>6)+8192]); bz += bzinc;
uint32_t u = bx + xtou*i;
uint32_t v = by + ytov*i;
uint8_t ch = buf[((u>>(32-logx))<<logy)+(v>>(32-logy))];
if (ch != 255)
*p = *(uint8_t *)(slopalptr[0] + ch);
slopalptr--;
p += pinc;
@ -3539,10 +3568,19 @@ static void grouscan(int32_t dax1, int32_t dax2, int32_t sectnum, char dastat)
globalx3 = (globalx2>>10);
globaly3 = (globaly2>>10);
asm3 = mulscale16(y2,globalzd) + (globalzx>>6);
if ((globalorientation&256)==0)
switch (globalorientation&0x180)
{
case 0:
slopevlin(ylookup[y2]+x+frameoffset,krecipasm(asm3>>3),(intptr_t)nptr2,y2-y1+1,globalx1,globaly1);
else
break;
case 128:
mslopevlin((uint8_t *)(ylookup[y2]+x+frameoffset),nptr2,y2-y1+1,globalx1,globaly1);
break;
case 256:
case 384:
tslopevlin((uint8_t *)(ylookup[y2]+x+frameoffset),nptr2,y2-y1+1,globalx1,globaly1);
break;
}
if ((x&15) == 0) faketimerhandler();
}