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- add slope sprite support to the new renderer.

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Some fudging was needed to avoid positioning problems as the renderer is more sensitive to this than Polymost.
This commit is contained in:
Christoph Oelckers 2021-12-21 13:46:11 +01:00
parent 6fd4d6d550
commit beddf1e1ca
6 changed files with 85 additions and 35 deletions
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2
source/build/src/clip.cpp
View file

@ -1499,7 +1499,7 @@ int hitscan(const vec3_t& start, const sectortype* startsect, const vec3_t& dire
case CSTAT_SPRITE_ALIGNMENT_SLOPE:
{
int32_t x3, y3, x4, y4, zz;
int32_t x3, y3, x4, y4;
int32_t const heinum = spriteGetSlope(spr);
int32_t const dax = (heinum * sintable[(spr->ang + 1024) & 2047]) << 1;
int32_t const day = (heinum * sintable[(spr->ang + 512) & 2047]) << 1;

20
source/build/src/polymost.cpp
View file

@ -2635,24 +2635,6 @@ static int32_t polymost_lintersect(int32_t x1, int32_t y1, int32_t x2, int32_t y
return rv;
}
static inline int16_t tspriteGetSlope(tspriteptr_t const tspr)
{
if (!(tspr->cstat2 & CSTAT2_SPRITE_SLOPE))
return 0;
return uint8_t(tspr->xoffset) + (uint8_t(tspr->yoffset) << 8);
}
static inline int32_t tspriteGetZOfSlope(tspriteptr_t const tspr, int32_t dax, int32_t day)
{
int16_t const heinum = tspriteGetSlope(tspr);
if (heinum == 0)
return tspr->z;
int const j = DMulScale(bsin(tspr->ang + 1024), day - tspr->y, -bsin(tspr->ang + 512), dax - tspr->x, 4);
return tspr->z + MulScale(heinum, j, 18);
}
static inline float tspriteGetZOfSlopeFloat(tspriteptr_t const tspr, float dax, float day)
{
int16_t const heinum = tspriteGetSlope(tspr);
@ -3700,7 +3682,7 @@ void renderDrawMasks(void)
if ((tspr->cstat & CSTAT_SPRITE_ALIGNMENT_MASK) == CSTAT_SPRITE_ALIGNMENT_FLOOR)
{
numpts = 4;
GetFlatSpritePosition(tspr, tspr->pos.vec2, pp);
GetFlatSpritePosition(tspr, tspr->pos.vec2, pp, nullptr);
}
else
{

31
source/core/gamefuncs.cpp
View file

@ -274,12 +274,13 @@ void GetWallSpritePosition(const tspritetype* spr, vec2_t pos, vec2_t* out, bool
//
//==========================================================================
template<class sprt>
void TGetFlatSpritePosition(const sprt* spr, vec2_t pos, vec2_t* out, bool render)
void TGetFlatSpritePosition(const spritetypebase* spr, vec2_t pos, vec2_t* out, int* outz, int heinum, bool render)
{
auto tex = tileGetTexture(spr->picnum);
int width, height, leftofs, topofs;
int ratio = ksqrt(heinum * heinum + 4096 * 4096);
if (render && hw_hightile && TileFiles.tiledata[spr->picnum].hiofs.xsize)
{
width = TileFiles.tiledata[spr->picnum].hiofs.xsize * spr->xrepeat;
@ -303,26 +304,40 @@ void TGetFlatSpritePosition(const sprt* spr, vec2_t pos, vec2_t* out, bool rende
int cosang = bcos(spr->ang);
int sinang = bsin(spr->ang);
int cosangslope = DivScale(cosang, ratio, 12);
int sinangslope = DivScale(sinang, ratio, 12);
out[0].x = pos.x + DMulScale(sinang, sprcenterx, cosang, sprcentery, 16);
out[0].y = pos.y + DMulScale(sinang, sprcentery, -cosang, sprcenterx, 16);
out[0].x = pos.x + DMulScale(sinang, sprcenterx, cosangslope, sprcentery, 16);
out[0].y = pos.y + DMulScale(sinangslope, sprcentery, -cosang, sprcenterx, 16);
out[1].x = out[0].x - MulScale(sinang, width, 16);
out[1].y = out[0].y + MulScale(cosang, width, 16);
vec2_t sub = { MulScale(cosang, height, 16), MulScale(sinang, height, 16) };
vec2_t sub = { MulScale(cosangslope, height, 16), MulScale(sinangslope, height, 16) };
out[2] = out[1] - sub;
out[3] = out[0] - sub;
if (outz)
{
if (!heinum) outz[3] = outz[2] = outz[1] = outz[0] = 0;
else
{
for (int i = 0; i < 4; i++)
{
int spos = DMulScale(-sinang, out[i].y - spr->y, -cosang, out[i].x - spr->x, 4);
outz[i] = MulScale(heinum, spos, 18);
}
}
}
}
void GetFlatSpritePosition(const spritetype* spr, vec2_t pos, vec2_t* out, bool render)
{
TGetFlatSpritePosition(spr, pos, out, render);
TGetFlatSpritePosition(spr, pos, out, nullptr, spriteGetSlope(spr), render);
}
void GetFlatSpritePosition(const tspritetype* spr, vec2_t pos, vec2_t* out, bool render)
void GetFlatSpritePosition(const tspritetype* spr, vec2_t pos, vec2_t* out, int* outz, bool render)
{
TGetFlatSpritePosition(spr, pos, out, render);
TGetFlatSpritePosition(spr, pos, out, outz, tspriteGetSlope(spr), render);
}
//==========================================================================

18
source/core/gamefuncs.h
View file

@ -126,8 +126,8 @@ int getslopeval(sectortype* sect, int x, int y, int z, int planez);
void setWallSectors();
void GetWallSpritePosition(const tspritetype* spr, vec2_t pos, vec2_t* out, bool render = false);
void GetFlatSpritePosition(const tspritetype* spr, vec2_t pos, vec2_t* out, bool render = false);
void GetFlatSpritePosition(const spritetype* spr, vec2_t pos, vec2_t* out, bool render = false);
void GetFlatSpritePosition(const tspritetype* spr, vec2_t pos, vec2_t* out, int* outz = nullptr, bool render = false);
void checkRotatedWalls();
bool sectorsConnected(int sect1, int sect2);
@ -265,6 +265,22 @@ inline int spriteGetSlope(const spritetype* spr)
return ((spr->cstat & CSTAT_SPRITE_ALIGNMENT_MASK) != CSTAT_SPRITE_ALIGNMENT_SLOPE) ? 0 : uint8_t(spr->xoffset) + (uint8_t(spr->yoffset) << 8);
}
// same stuff, different flag...
inline int tspriteGetSlope(const tspritetype* spr)
{
return !(spr->cstat2 & CSTAT2_SPRITE_SLOPE) ? 0 : uint8_t(spr->xoffset) + (uint8_t(spr->yoffset) << 8);
}
inline int32_t tspriteGetZOfSlope(const tspritetype* tspr, int dax, int day)
{
int heinum = tspriteGetSlope(tspr);
if (heinum == 0) return tspr->z;
int const j = DMulScale(bsin(tspr->ang + 1024), day - tspr->y, -bsin(tspr->ang + 512), dax - tspr->x, 4);
return tspr->z + MulScale(heinum, j, 18);
}
inline int I_GetBuildTime()
{
return I_GetTime(120);

2
source/core/rendering/scene/hw_drawstructs.h
View file

@ -272,7 +272,7 @@ public:
int plane;
int vertindex, vertcount; // this should later use a static vertex buffer, but that'd hinder the development phase, so for now vertex data gets created on the fly.
void MakeVertices();
void MakeVertices(HWDrawInfo* di);
int dynlightindex;

47
source/core/rendering/scene/hw_flats.cpp
View file

@ -93,7 +93,7 @@ void HWFlat::SetupLights(HWDrawInfo *di, FLightNode * node, FDynLightData &light
//
//==========================================================================
void HWFlat::MakeVertices()
void HWFlat::MakeVertices(HWDrawInfo* di)
{
if (vertcount > 0) return;
bool canvas = texture->isHardwareCanvas();
@ -120,17 +120,54 @@ void HWFlat::MakeVertices()
else
{
vec2_t pos[4];
GetFlatSpritePosition(Sprite, Sprite->pos.vec2, pos, true);
int ofsz[4];
GetFlatSpritePosition(Sprite, Sprite->pos.vec2, pos, ofsz, true);
auto ret = screen->mVertexData->AllocVertices(6);
auto vp = ret.first;
float x = !(Sprite->cstat & CSTAT_SPRITE_XFLIP) ? 0.f : 1.f;
float y = !(Sprite->cstat & CSTAT_SPRITE_YFLIP) ? 0.f : 1.f;
if (Sprite->cstat2 & CSTAT2_SPRITE_SLOPE)
{
int posx = int(di->Viewpoint.Pos.X * 16.f);
int posy = int(di->Viewpoint.Pos.Y * -16.f);
int posz = int(di->Viewpoint.Pos.Z * -256.f);
// Make adjustments for poorly aligned slope sprites on floors or ceilings
constexpr float ONPLANE_THRESHOLD = 3.f;
if (tspriteGetZOfSlope(Sprite, posx, posy) < posz)
{
float maxofs = -FLT_MAX, minofs = FLT_MAX;
for (int i = 0; i < 4; i++)
{
float vz = getceilzofslopeptr(Sprite->sectp, pos[i].x, pos[i].y) * (1 / -256.f);
float sz = z + ofsz[i] * (1 / -256.f);
int diff = vz - sz;
if (diff > maxofs) maxofs = diff;
if (diff < minofs) minofs = diff;
}
if (maxofs > 0 && minofs >= -ONPLANE_THRESHOLD && maxofs <= ONPLANE_THRESHOLD) z -= maxofs;
}
else
{
float maxofs = -FLT_MAX, minofs = FLT_MAX;
for (int i = 0; i < 4; i++)
{
float vz = getflorzofslopeptr(Sprite->sectp, pos[i].x, pos[i].y) * (1 / -256.f);
float sz = z + ofsz[i] * (1 / -256.f);
int diff = vz - sz;
if (diff > maxofs) maxofs = diff;
if (diff < minofs) minofs = diff;
}
if (minofs < 0 && maxofs <= -ONPLANE_THRESHOLD && minofs >= ONPLANE_THRESHOLD) z -= minofs;
}
}
for (unsigned i = 0; i < 6; i++)
{
const static unsigned indices[] = { 0, 1, 2, 0, 2, 3 };
int j = indices[i];
vp->SetVertex(pos[j].x * (1 / 16.f), z, pos[j].y * (1 / -16.f));
vp->SetVertex(pos[j].x * (1 / 16.f), z + ofsz[j] * (1 / -256.f), pos[j].y * (1 / -16.f));
if (!canvas) vp->SetTexCoord(j == 1 || j == 2 ? 1.f - x : x, j == 2 || j == 3 ? 1.f - y : y);
else vp->SetTexCoord(j == 1 || j == 2 ? 1.f - x : x, j == 2 || j == 3 ? y : 1.f - y);
vp++;
@ -149,7 +186,7 @@ void HWFlat::DrawFlat(HWDrawInfo *di, FRenderState &state, bool translucent)
{
if (screen->BuffersArePersistent() && !Sprite)
{
MakeVertices();
MakeVertices(di);
}
#ifdef _DEBUG
@ -228,7 +265,7 @@ void HWFlat::PutFlat(HWDrawInfo *di, int whichplane)
SetupLights(di, section->lighthead, lightdata, sector->PortalGroup);
}
#endif
MakeVertices();
MakeVertices(di);
}
di->AddFlat(this);
rendered_flats++;