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Merge branch 'linedef-alpha' into 'udmf-next' 

Implement linedef alpha field

See merge request STJr/SRB2!774
This commit is contained in:
MascaraSnake 2020-02-13 02:18:41 -05:00
parent 85f44fce75 7b627abf31
commit 2f465e6740
6 changed files with 48 additions and 51 deletions
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35
src/hardware/hw_main.c
View File

@ -895,6 +895,7 @@ FBITFIELD HWR_TranstableToAlpha(INT32 transtablenum, FSurfaceInfo *pSurf)
{
switch (transtablenum)
{
case 0 : pSurf->FlatColor.s.alpha = 0x00;return PF_Masked;
case tr_trans10 : pSurf->FlatColor.s.alpha = 0xe6;return PF_Translucent;
case tr_trans20 : pSurf->FlatColor.s.alpha = 0xcc;return PF_Translucent;
case tr_trans30 : pSurf->FlatColor.s.alpha = 0xb3;return PF_Translucent;
@ -1818,37 +1819,10 @@ static void HWR_StoreWallRange(double startfrac, double endfrac)
}
#endif
// set alpha for transparent walls (new boom and legacy linedef types)
// set alpha for transparent walls
// ooops ! this do not work at all because render order we should render it in backtofront order
switch (gr_linedef->special)
{
case 900:
blendmode = HWR_TranstableToAlpha(tr_trans10, &Surf);
break;
case 901:
blendmode = HWR_TranstableToAlpha(tr_trans20, &Surf);
break;
case 902:
blendmode = HWR_TranstableToAlpha(tr_trans30, &Surf);
break;
case 903:
blendmode = HWR_TranstableToAlpha(tr_trans40, &Surf);
break;
case 904:
blendmode = HWR_TranstableToAlpha(tr_trans50, &Surf);
break;
case 905:
blendmode = HWR_TranstableToAlpha(tr_trans60, &Surf);
break;
case 906:
blendmode = HWR_TranstableToAlpha(tr_trans70, &Surf);
break;
case 907:
blendmode = HWR_TranstableToAlpha(tr_trans80, &Surf);
break;
case 908:
blendmode = HWR_TranstableToAlpha(tr_trans90, &Surf);
break;
// Translucent
case 102:
case 121:
@ -1869,7 +1843,10 @@ static void HWR_StoreWallRange(double startfrac, double endfrac)
blendmode = PF_Translucent;
break;
default:
blendmode = PF_Masked;
if (gr_linedef->alpha >= 0 && gr_linedef->alpha < FRACUNIT)
blendmode = HWR_TranstableToAlpha(R_GetLinedefTransTable(gr_linedef->alpha), &Surf);
else
blendmode = PF_Masked;
break;
}

5
src/lua_maplib.c
View File

@ -99,6 +99,7 @@ enum line_e {
line_sidenum,
line_frontside,
line_backside,
line_alpha,
line_slopetype,
line_frontsector,
line_backsector,
@ -122,6 +123,7 @@ static const char *const line_opt[] = {
"sidenum",
"frontside",
"backside",
"alpha",
"slopetype",
"frontsector",
"backsector",
@ -806,6 +808,9 @@ static int line_get(lua_State *L)
return 0;
LUA_PushUserdata(L, &sides[line->sidenum[1]], META_SIDE);
return 1;
case line_alpha:
lua_pushfixed(L, line->alpha);
return 1;
case line_slopetype:
switch(line->slopetype)
{

15
src/p_setup.c
View File

@ -1057,6 +1057,7 @@ static void P_LoadLinedefs(UINT8 *data)
ld->tag = SHORT(mld->tag);
memset(ld->args, 0, NUMLINEARGS*sizeof(*ld->args));
memset(ld->stringargs, 0x00, NUMLINESTRINGARGS*sizeof(*ld->stringargs));
ld->alpha = FRACUNIT;
P_SetLinedefV1(i, SHORT(mld->v1));
P_SetLinedefV2(i, SHORT(mld->v2));
@ -1461,6 +1462,8 @@ static void ParseTextmapLinedefParameter(UINT32 i, char *param, char *val)
lines[i].sidenum[0] = atol(val);
else if (fastcmp(param, "sideback"))
lines[i].sidenum[1] = atol(val);
else if (fastcmp(param, "alpha"))
lines[i].alpha = FLOAT_TO_FIXED(atof(val));
// Flags
else if (fastcmp(param, "blocking") && fastcmp("true", val))
@ -1650,6 +1653,7 @@ static void P_LoadTextmap(void)
ld->tag = 0;
memset(ld->args, 0, NUMLINEARGS*sizeof(*ld->args));
memset(ld->stringargs, 0x00, NUMLINESTRINGARGS*sizeof(*ld->stringargs));
ld->alpha = FRACUNIT;
ld->sidenum[0] = 0xffff;
ld->sidenum[1] = 0xffff;
@ -2766,6 +2770,17 @@ static void P_ConvertBinaryMap(void)
lines[i].args[1] = lines[i].tag;
lines[i].special = 720;
break;
case 900: //Translucent wall (10%)
case 901: //Translucent wall (20%)
case 902: //Translucent wall (30%)
case 903: //Translucent wall (40%)
case 904: //Translucent wall (50%)
case 905: //Translucent wall (60%)
case 906: //Translucent wall (70%)
case 907: //Translucent wall (80%)
case 908: //Translucent wall (90%)
lines[i].alpha = ((909 - lines[i].special) << FRACBITS)/10;
break;
default:
break;
}

1
src/r_defs.h
View File

@ -423,6 +423,7 @@ typedef struct line_s
// Visual appearance: sidedefs.
UINT16 sidenum[2]; // sidenum[1] will be 0xffff if one-sided
fixed_t alpha; // translucency
fixed_t bbox[4]; // bounding box for the extent of the linedef

42
src/r_segs.c
View File

@ -286,6 +286,11 @@ static void R_DrawFlippedMaskedSegColumn(column_t *column)
R_DrawFlippedMaskedColumn(column, column2s_length);
}
transnum_t R_GetLinedefTransTable(fixed_t alpha)
{
return (20*(FRACUNIT - alpha - 1) + FRACUNIT) >> (FRACBITS+1);
}
void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2)
{
size_t pindex;
@ -314,31 +319,24 @@ void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2)
texnum = R_GetTextureNum(curline->sidedef->midtexture);
windowbottom = windowtop = sprbotscreen = INT32_MAX;
// hack translucent linedef types (900-909 for transtables 1-9)
ldef = curline->linedef;
switch (ldef->special)
if (!ldef->alpha)
return;
if (ldef->alpha > 0 && ldef->alpha < FRACUNIT)
{
case 900:
case 901:
case 902:
case 903:
case 904:
case 905:
case 906:
case 907:
case 908:
dc_transmap = transtables + ((ldef->special-900)<<FF_TRANSSHIFT);
colfunc = colfuncs[COLDRAWFUNC_FUZZY];
break;
case 909:
colfunc = colfuncs[COLDRAWFUNC_FOG];
windowtop = frontsector->ceilingheight;
windowbottom = frontsector->floorheight;
break;
default:
colfunc = colfuncs[BASEDRAWFUNC];
break;
dc_transmap = transtables + ((R_GetLinedefTransTable(ldef->alpha) - 1) << FF_TRANSSHIFT);
colfunc = colfuncs[COLDRAWFUNC_FUZZY];
}
else if (ldef->special == 909)
{
colfunc = colfuncs[COLDRAWFUNC_FOG];
windowtop = frontsector->ceilingheight;
windowbottom = frontsector->floorheight;
}
else
colfunc = colfuncs[BASEDRAWFUNC];
if (curline->polyseg && curline->polyseg->translucency > 0)
{

1
src/r_segs.h
View File

@ -18,6 +18,7 @@
#pragma interface
#endif
transnum_t R_GetLinedefTransTable(fixed_t alpha);
void R_RenderMaskedSegRange(drawseg_t *ds, INT32 x1, INT32 x2);
void R_RenderThickSideRange(drawseg_t *ds, INT32 x1, INT32 x2, ffloor_t *pffloor);
void R_StoreWallRange(INT32 start, INT32 stop);