stjr/SRB2
0
0
Fork 0
mirror of https://git.do.srb2.org/STJr/SRB2.git synced 2025-01-31 13:40:45 +00:00
Code Issues Projects Releases Packages Wiki Activity

Last minute OpenGL fix: don't check flippedness in HWR_RotateSpritePolyToAim if the mobj is actually a precipmobj!

Browse source 
precipmobj_t does not have eflags, so P_MobjFlip checking it would actually be accessing memory addresses beyond the end of the struct
This commit is contained in:
Monster Iestyn 2020-05-10 20:09:08 +01:00
parent 3ce4c1b789
commit 197da95a23
1 changed files with 5 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
src/hardware/hw_main.c
View file

@ -4019,7 +4019,7 @@ static void HWR_DrawDropShadow(mobj_t *thing, gr_vissprite_t *spr, fixed_t scale
}
// This is expecting a pointer to an array containing 4 wallVerts for a sprite
static void HWR_RotateSpritePolyToAim(gr_vissprite_t *spr, FOutVector *wallVerts)
static void HWR_RotateSpritePolyToAim(gr_vissprite_t *spr, FOutVector *wallVerts, const boolean precip)
{
if (cv_grspritebillboarding.value
&& spr && spr->mobj && !(spr->mobj->frame & FF_PAPERSPRITE)
@ -4027,7 +4027,7 @@ static void HWR_RotateSpritePolyToAim(gr_vissprite_t *spr, FOutVector *wallVerts
{
float basey = FIXED_TO_FLOAT(spr->mobj->z);
float lowy = wallVerts[0].y;
if (P_MobjFlip(spr->mobj) == -1)
if (!precip && P_MobjFlip(spr->mobj) == -1) // precip doesn't have eflags so they can't flip
{
basey = FIXED_TO_FLOAT(spr->mobj->z + spr->mobj->height);
}
@ -4140,7 +4140,7 @@ static void HWR_SplitSprite(gr_vissprite_t *spr)
}
// Let dispoffset work first since this adjust each vertex
HWR_RotateSpritePolyToAim(spr, baseWallVerts);
HWR_RotateSpritePolyToAim(spr, baseWallVerts, false);
realtop = top = baseWallVerts[3].y;
realbot = bot = baseWallVerts[0].y;
@ -4419,7 +4419,7 @@ static void HWR_DrawSprite(gr_vissprite_t *spr)
}
// Let dispoffset work first since this adjust each vertex
HWR_RotateSpritePolyToAim(spr, wallVerts);
HWR_RotateSpritePolyToAim(spr, wallVerts, false);
// This needs to be AFTER the shadows so that the regular sprites aren't drawn completely black.
// sprite lighting by modulating the RGB components
@ -4503,7 +4503,7 @@ static inline void HWR_DrawPrecipitationSprite(gr_vissprite_t *spr)
wallVerts[1].z = wallVerts[2].z = spr->z2;
// Let dispoffset work first since this adjust each vertex
HWR_RotateSpritePolyToAim(spr, wallVerts);
HWR_RotateSpritePolyToAim(spr, wallVerts, true);
wallVerts[0].sow = wallVerts[3].sow = 0;
wallVerts[2].sow = wallVerts[1].sow = gpatch->max_s;