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Calculate texture coordinates as double since we're storing them that way anyway

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This isn't really intended to fix any specific issue, but to shut up Visual Studio whining about arithmetic overflows.

git-svn-id: https://svn.eduke32.com/eduke32@7403 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
terminx 2019-03-19 17:08:05 +00:00
parent 729f83761a
commit 770b255bff
2 changed files with 39 additions and 36 deletions
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4
source/build/include/polymost.h
View file

@ -17,7 +17,8 @@ typedef struct { float r, g, b, a; } coltypef;
extern int32_t rendmode;
extern float gtang;
extern float glox1, gloy1;
extern float gxyaspect, grhalfxdown10x;
extern double gxyaspect;
extern float grhalfxdown10x;
extern float gcosang, gsinang, gcosang2, gsinang2;
extern float gchang, gshang, gctang, gstang, gvisibility;
@ -274,7 +275,6 @@ extern int32_t gloadtile_hi(int32_t,int32_t,int32_t,hicreplctyp *,int32_t,pthtyp
extern int32_t globalnoeffect;
extern int32_t drawingskybox;
extern int32_t hicprecaching;
extern float gyxscale, gxyaspect, ghalfx, grhalfxdown10;
extern float fcosglobalang, fsinglobalang;
extern float fxdim, fydim, fydimen, fviewingrange;

67
source/build/src/polymost.cpp
View file

@ -64,7 +64,7 @@ int32_t r_npotwallmode = 0;
static float gviewxrange;
static float ghoriz;
float gxyaspect;
double gxyaspect;
float gyxscale, ghalfx, grhalfxdown10, grhalfxdown10x;
float gcosang, gsinang, gcosang2, gsinang2;
float gchang, gshang, gctang, gstang, gvisibility;
@ -4602,7 +4602,7 @@ static void polymost_internal_nonparallaxed(vec2f_t n0, vec2f_t n1, float ryp0,
float const ox2 = (oxy.y - fglobalposy) * gcosang - (oxy.x - fglobalposx) * gsinang;
float oy2 = 1.f / ((oxy.x - fglobalposx) * gcosang2 + (oxy.y - fglobalposy) * gsinang2);
double const px[3] = { x0, x1, ghalfx * ox2 * oy2 + ghalfx };
double const px[3] = { x0, x1, (double)ghalfx * ox2 * oy2 + ghalfx };
oy2 *= gyxscale;
@ -4625,7 +4625,7 @@ static void polymost_internal_nonparallaxed(vec2f_t n0, vec2f_t n1, float ryp0,
py[0] = y0;
py[1] = y1;
py[2] = (double)((float)(global_getzofslope_func(sectnum, (int)oxy.x, (int)oxy.y) - globalposz) * oy2 + ghoriz);
py[2] = double(global_getzofslope_func(sectnum, Blrintf(oxy.x), Blrintf(oxy.y)) - globalposz) * oy2 + ghoriz;
vec3f_t oxyz[2] = { { (float)(py[1] - py[2]), (float)(py[2] - py[0]), (float)(py[0] - py[1]) },
{ (float)(px[2] - px[1]), (float)(px[0] - px[2]), (float)(px[1] - px[0]) } };
@ -4686,7 +4686,7 @@ static void calc_ypanning(int32_t refposz, float ryp0, float ryp1,
{
float const t0 = ((float)(refposz-globalposz))*ryp0 + ghoriz;
float const t1 = ((float)(refposz-globalposz))*ryp1 + ghoriz;
float t = ((xtex.d*x0 + otex.d) * (float)yrepeat) / ((x1-x0) * ryp0 * 2048.f);
float t = (float(xtex.d*x0 + otex.d) * (float)yrepeat) / ((x1-x0) * ryp0 * 2048.f);
int i = (1<<(picsiz[globalpicnum]>>4));
if (i < tilesiz[globalpicnum].y) i <<= 1;
@ -4711,9 +4711,12 @@ static void calc_ypanning(int32_t refposz, float ryp0, float ryp1,
}
float const fy = (float)(ypan * i) * (1.f / 256.f);
xtex.v = (t0-t1)*t;
ytex.v = (x1-x0)*t;
otex.v = -xtex.v*x0 - ytex.v*t0 + fy*otex.d; xtex.v += fy*xtex.d; ytex.v += fy*ytex.d;
xtex.v = double(t0 - t1) * t;
ytex.v = double(x1 - x0) * t;
otex.v = -xtex.v * x0 - ytex.v * t0 + fy * otex.d;
xtex.v += fy * xtex.d;
ytex.v += fy * ytex.d;
}
static inline int32_t testvisiblemost(float const x0, float const x1)
@ -4731,12 +4734,12 @@ static inline int polymost_getclosestpointonwall(vec2_t const * const pos, int32
{
vec2_t const w = { wall[dawall].x, wall[dawall].y };
vec2_t const d = { POINT2(dawall).x - w.x, POINT2(dawall).y - w.y };
int64_t i = d.x * (pos->x - w.x) + d.y * (pos->y - w.y);
int64_t i = d.x * ((int64_t)pos->x - w.x) + d.y * ((int64_t)pos->y - w.y);
if (i < 0)
return 1;
int64_t const j = d.x * d.x + d.y * d.y;
int64_t const j = (int64_t)d.x * d.x + (int64_t)d.y * d.y;
if (i > j)
return 1;
@ -4872,13 +4875,13 @@ static void polymost_drawalls(int32_t const bunch)
//Hack to draw black rectangle below sky when looking down...
xtex.d = xtex.u = xtex.v = 0;
ytex.d = gxyaspect * (1.f / 262144.f);
ytex.d = gxyaspect * (1.0 / 262144.0);
ytex.u = 0;
ytex.v = (float)(tilesiz[globalpicnum].y - 1) * ytex.d;
ytex.v = double(tilesiz[globalpicnum].y - 1) * ytex.d;
otex.d = -ghoriz * ytex.d;
otex.u = 0;
otex.v = (float)(tilesiz[globalpicnum].y - 1) * otex.d;
otex.v = double(tilesiz[globalpicnum].y - 1) * otex.d;
o.y = ((float)tilesiz[globalpicnum].y*dd-vv[0])/vv[1];
@ -4946,8 +4949,8 @@ static void polymost_drawalls(int32_t const bunch)
xtex.d = xtex.v = 0;
ytex.d = ytex.u = 0;
otex.d = dd;
xtex.u = otex.d * (t * (float)((uint64_t)(xdimscale * yxaspect) * viewingrange)) *
(1.f / (16384.f * 65536.f * 65536.f * 5.f * 1024.f));
xtex.u = otex.d * (t * double(((uint64_t)xdimscale * yxaspect) * viewingrange)) *
(1.0 / (16384.0 * 65536.0 * 65536.0 * 5.0 * 1024.0));
ytex.v = vv[1];
otex.v = r_parallaxskypanning ? vv[0] + dd*(float)sec->floorypanning*(float)i*(1.f/256.f) : vv[0];
@ -5055,7 +5058,7 @@ static void polymost_drawalls(int32_t const bunch)
fsinglobalang * (1.f / 2147483648.f) };
xtex.d = 0;
ytex.d = gxyaspect*(1.f/4194304.f);
ytex.d = gxyaspect*(1.0/4194304.0);
otex.d = -ghoriz*ytex.d;
xtex.u = ft[3]*fviewingrange*(-1.0/65536.0);
xtex.v = ft[2]*fviewingrange*(-1.0/65536.0);
@ -5089,11 +5092,11 @@ static void polymost_drawalls(int32_t const bunch)
//wall of skybox
drawingskybox = i+1; //i+1th texture/index i of skybox
xtex.d = (sky_ryp0-sky_ryp1)*gxyaspect*(1.f/512.f) / (sky_ox0-sky_ox1);
xtex.d = (sky_ryp0-sky_ryp1)*gxyaspect*(1.0/512.0) / (sky_ox0-sky_ox1);
ytex.d = 0;
otex.d = sky_ryp0*gxyaspect*(1.f/512.f) - xtex.d*sky_ox0;
xtex.u = (sky_t0*sky_ryp0 - sky_t1*sky_ryp1)*gxyaspect*(64.f/512.f) / (sky_ox0-sky_ox1);
otex.u = sky_t0*sky_ryp0*gxyaspect*(64.f/512.f) - xtex.u*sky_ox0;
otex.d = sky_ryp0*gxyaspect*(1.0/512.0) - xtex.d*sky_ox0;
xtex.u = (sky_t0*sky_ryp0 - sky_t1*sky_ryp1)*gxyaspect*(64.0/512.0) / (sky_ox0-sky_ox1);
otex.u = sky_t0*sky_ryp0*gxyaspect*(64.0/512.0) - xtex.u*sky_ox0;
ytex.u = 0;
sky_t0 = -8192.f*sky_ryp0 + ghoriz;
sky_t1 = -8192.f*sky_ryp1 + ghoriz;
@ -5131,7 +5134,7 @@ static void polymost_drawalls(int32_t const bunch)
fsinglobalang * (1.f / 2147483648.f) };
xtex.d = 0;
ytex.d = gxyaspect*(-1.f/4194304.f);
ytex.d = gxyaspect*(-1.0/4194304.0);
otex.d = -ghoriz*ytex.d;
xtex.u = ft[3]*fviewingrange*(-1.0/65536.0);
xtex.v = ft[2]*fviewingrange*(-1.0/65536.0);
@ -5242,7 +5245,7 @@ static void polymost_drawalls(int32_t const bunch)
//Hack to draw color rectangle above sky when looking up...
xtex.d = xtex.u = xtex.v = 0;
ytex.d = gxyaspect * (1.f / -262144.f);
ytex.d = gxyaspect * (1.0 / -262144.0);
ytex.u = 0;
ytex.v = 0;
@ -5282,8 +5285,8 @@ static void polymost_drawalls(int32_t const bunch)
xtex.d = xtex.v = 0;
ytex.d = ytex.u = 0;
otex.d = dd;
xtex.u = otex.d * (t * (float)((uint64_t)(xdimscale * yxaspect) * viewingrange)) *
(1.f / (16384.f * 65536.f * 65536.f * 5.f * 1024.f));
xtex.u = otex.d * (t * double(((uint64_t)xdimscale * yxaspect) * viewingrange)) *
(1.0 / (16384.0 * 65536.0 * 65536.0 * 5.0 * 1024.0));
ytex.v = vv[1];
otex.v = r_parallaxskypanning ? vv[0] + dd*(float)sec->ceilingypanning*(float)i*(1.f/256.f) : vv[0];
@ -5391,7 +5394,7 @@ static void polymost_drawalls(int32_t const bunch)
fsinglobalang * (1.f / 2147483648.f) };
xtex.d = 0;
ytex.d = gxyaspect*(-1.f/4194304.f);
ytex.d = gxyaspect*(-1.0/4194304.0);
otex.d = -ghoriz*ytex.d;
xtex.u = ft[3]*fviewingrange*(-1.0/65536.0);
xtex.v = ft[2]*fviewingrange*(-1.0/65536.0);
@ -5425,11 +5428,11 @@ static void polymost_drawalls(int32_t const bunch)
//wall of skybox
drawingskybox = i+1; //i+1th texture/index i of skybox
xtex.d = (sky_ryp0-sky_ryp1)*gxyaspect*(1.f/512.f) / (sky_ox0-sky_ox1);
xtex.d = (sky_ryp0-sky_ryp1)*gxyaspect*(1.0/512.0) / (sky_ox0-sky_ox1);
ytex.d = 0;
otex.d = sky_ryp0*gxyaspect*(1.f/512.f) - xtex.d*sky_ox0;
xtex.u = (sky_t0*sky_ryp0 - sky_t1*sky_ryp1)*gxyaspect*(64.f/512.f) / (sky_ox0-sky_ox1);
otex.u = sky_t0*sky_ryp0*gxyaspect*(64.f/512.f) - xtex.u*sky_ox0;
otex.d = sky_ryp0*gxyaspect*(1.0/512.0) - xtex.d*sky_ox0;
xtex.u = (sky_t0*sky_ryp0 - sky_t1*sky_ryp1)*gxyaspect*(64.0/512.0) / (sky_ox0-sky_ox1);
otex.u = sky_t0*sky_ryp0*gxyaspect*(64.0/512.0) - xtex.u*sky_ox0;
ytex.u = 0;
sky_t0 = -8192.f*sky_ryp0 + ghoriz;
sky_t1 = -8192.f*sky_ryp1 + ghoriz;
@ -5467,7 +5470,7 @@ static void polymost_drawalls(int32_t const bunch)
fsinglobalang * (1.f / 2147483648.f) };
xtex.d = 0;
ytex.d = gxyaspect*(1.f/4194304.f);
ytex.d = gxyaspect*(1.0/4194304.0);
otex.d = -ghoriz*ytex.d;
xtex.u = ft[3]*fviewingrange*(-1.0/65536.0);
xtex.v = ft[2]*fviewingrange*(-1.0/65536.0);
@ -5546,7 +5549,7 @@ static void polymost_drawalls(int32_t const bunch)
otex.d = ryp0*gxyaspect - xtex.d*x0;
xtex.u = (t0*ryp0 - t1*ryp1)*gxyaspect*(float)wal->xrepeat*8.f / (x0-x1);
otex.u = t0*ryp0*gxyaspect*(float)wal->xrepeat*8.f - xtex.u*x0;
otex.u = t0*ryp0*gxyaspect*wal->xrepeat*8.0 - xtex.u*x0;
otex.u += (float)wal->xpanning*otex.d;
xtex.u += (float)wal->xpanning*xtex.d;
ytex.u = 0;
@ -5964,7 +5967,7 @@ void polymost_drawrooms()
//Polymost supports true look up/down :) Here, we convert horizon to angle.
//gchang&gshang are cos&sin of this angle (respectively)
gyxscale = ((float)xdimenscale)*(1.0f/131072.f);
gxyaspect = ((float)xyaspect*fviewingrange)*(5.f/(65536.f*262144.f));
gxyaspect = ((double)xyaspect*fviewingrange)*(5.0/(65536.0*262144.0));
gviewxrange = fviewingrange * fxdimen * (1.f/(32768.f*1024.f));
gcosang = fcosglobalang*(1.0f/262144.f);
gsinang = fsinglobalang*(1.0f/262144.f);
@ -7475,7 +7478,7 @@ void polymost_dorotatespritemodel(int32_t sx, int32_t sy, int32_t z, int16_t a,
float const ogstang = gstang; gstang = (float) sintable[a&2047]*d;
int const ogshade = globalshade; globalshade = dashade;
int const ogpal = globalpal; globalpal = (int32_t) ((uint8_t) dapalnum);
float const ogxyaspect = gxyaspect; gxyaspect = 1.f;
double const ogxyaspect = gxyaspect; gxyaspect = 1.f;
int const oldviewingrange = viewingrange; viewingrange = 65536;
float const oldfviewingrange = fviewingrange; fviewingrange = 65536.f;