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Polymost TROR patch from Nuke.YKT--nice!
git-svn-id: https://svn.eduke32.com/eduke32@7392 1a8010ca-5511-0410-912e-c29ae57300e0
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terminx
parent
c6261b9f45
commit
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1 changed files with 125 additions and 26 deletions
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@ -3546,10 +3546,87 @@ static int32_t domostpolymethod = DAMETH_NOMASK;
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#define DOMOST_OFFSET .01f
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static void polymost_domost(float x0, float y0, float x1, float y1)
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static void polymost_clipmost(vec2f_t *dpxy, int &n, float x0, float x1, float y0top, float y0bot, float y1top, float y1bot)
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{
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if (y0bot < y0top || y1bot < y1top)
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return;
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//Clip to (x0,y0top)-(x1,y1top)
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vec2f_t dp2[8];
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float t0, t1;
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int n2 = 0;
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t1 = -((dpxy[0].x - x0) * (y1top - y0top) - (dpxy[0].y - y0top) * (x1 - x0));
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for (bssize_t i=0; i<n; i++)
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{
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int j = i + 1;
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if (j >= n)
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j = 0;
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t0 = t1;
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t1 = -((dpxy[j].x - x0) * (y1top - y0top) - (dpxy[j].y - y0top) * (x1 - x0));
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if (t0 >= 0)
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dp2[n2++] = dpxy[i];
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if ((t0 >= 0) != (t1 >= 0) && (t0 <= 0) != (t1 <= 0))
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{
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float const r = t0 / (t0 - t1);
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dp2[n2].x = (dpxy[j].x - dpxy[i].x) * r + dpxy[i].x;
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dp2[n2].y = (dpxy[j].y - dpxy[i].y) * r + dpxy[i].y;
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n2++;
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}
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}
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if (n2 < 3)
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{
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n = 0;
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return;
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}
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//Clip to (x1,y1bot)-(x0,y0bot)
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t1 = -((dp2[0].x - x1) * (y0bot - y1bot) - (dp2[0].y - y1bot) * (x0 - x1));
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n = 0;
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for (bssize_t i = 0, j = 1; i < n2; j = ++i + 1)
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{
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if (j >= n2)
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j = 0;
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t0 = t1;
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t1 = -((dp2[j].x - x1) * (y0bot - y1bot) - (dp2[j].y - y1bot) * (x0 - x1));
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if (t0 >= 0)
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dpxy[n++] = dp2[i];
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if ((t0 >= 0) != (t1 >= 0) && (t0 <= 0) != (t1 <= 0))
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{
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float const r = t0 / (t0 - t1);
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dpxy[n].x = (dp2[j].x - dp2[i].x) * r + dp2[i].x;
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dpxy[n].y = (dp2[j].y - dp2[i].y) * r + dp2[i].y;
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n++;
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}
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}
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if (n < 3)
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{
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n = 0;
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return;
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}
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}
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static void polymost_domost(float x0, float y0, float x1, float y1, float y0top = 0.f, float y0bot = -1.f, float y1top = 0.f, float y1bot = -1.f)
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{
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int const dir = (x0 < x1);
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y0top -= DOMOST_OFFSET;
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y1top -= DOMOST_OFFSET;
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y0bot += DOMOST_OFFSET;
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y1bot += DOMOST_OFFSET;
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if (dir) //clip dmost (floor)
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{
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y0 -= DOMOST_OFFSET;
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@ -3560,6 +3637,8 @@ static void polymost_domost(float x0, float y0, float x1, float y1)
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if (x0 == x1) return;
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swapfloat(&x0, &x1);
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swapfloat(&y0, &y1);
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swapfloat(&y0top, &y1top);
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swapfloat(&y0bot, &y1bot);
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y0 += DOMOST_OFFSET;
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y1 += DOMOST_OFFSET; //necessary?
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}
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@ -3702,44 +3781,56 @@ skip: ;
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case 5:
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case 7:
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{
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vec2f_t const dpxy[4] = {
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vec2f_t dpxy[8] = {
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{ dx0, vsp[i].cy[0] }, { dx1, vsp[i].cy[1] }, { dx1, n1.y }, { dx0, n0.y }
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};
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int n = 4;
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polymost_clipmost(dpxy, n, x0, x1, y0top, y0bot, y1top, y1bot);
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vsp[i].cy[0] = n0.y;
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vsp[i].cy[1] = n1.y;
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vsp[i].ctag = gtag;
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polymost_drawpoly(dpxy, 4, domostpolymethod);
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polymost_drawpoly(dpxy, n, domostpolymethod);
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}
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break;
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case 1:
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case 2:
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{
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vec2f_t const dpxy[3] = { { dx0, vsp[i].cy[0] }, { dx1, vsp[i].cy[1] }, { dx0, n0.y } };
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vec2f_t dpxy[8] = { { dx0, vsp[i].cy[0] }, { dx1, vsp[i].cy[1] }, { dx0, n0.y } };
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int n = 3;
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polymost_clipmost(dpxy, n, x0, x1, y0top, y0bot, y1top, y1bot);
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vsp[i].cy[0] = n0.y;
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vsp[i].ctag = gtag;
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polymost_drawpoly(dpxy, 3, domostpolymethod);
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polymost_drawpoly(dpxy, n, domostpolymethod);
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}
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break;
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case 3:
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case 6:
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{
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vec2f_t const dpxy[3] = { { dx0, vsp[i].cy[0] }, { dx1, vsp[i].cy[1] }, { dx1, n1.y } };
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vec2f_t dpxy[8] = { { dx0, vsp[i].cy[0] }, { dx1, vsp[i].cy[1] }, { dx1, n1.y } };
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int n = 3;
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polymost_clipmost(dpxy, n, x0, x1, y0top, y0bot, y1top, y1bot);
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vsp[i].cy[1] = n1.y;
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vsp[i].ctag = gtag;
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polymost_drawpoly(dpxy, 3, domostpolymethod);
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polymost_drawpoly(dpxy, n, domostpolymethod);
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}
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break;
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case 8:
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{
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vec2f_t const dpxy[4] = {
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vec2f_t dpxy[8] = {
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{ dx0, vsp[i].cy[0] }, { dx1, vsp[i].cy[1] }, { dx1, vsp[i].fy[1] }, { dx0, vsp[i].fy[0] }
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};
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int n = 4;
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polymost_clipmost(dpxy, n, x0, x1, y0top, y0bot, y1top, y1bot);
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vsp[i].ctag = vsp[i].ftag = -1;
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polymost_drawpoly(dpxy, 4, domostpolymethod);
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polymost_drawpoly(dpxy, n, domostpolymethod);
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}
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default: break;
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}
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@ -3752,41 +3843,53 @@ skip: ;
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case 3:
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case 1:
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{
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vec2f_t const dpxy[4] = {
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vec2f_t dpxy[8] = {
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{ dx0, n0.y }, { dx1, n1.y }, { dx1, vsp[i].fy[1] }, { dx0, vsp[i].fy[0] }
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};
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int n = 4;
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polymost_clipmost(dpxy, n, x0, x1, y0top, y0bot, y1top, y1bot);
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vsp[i].fy[0] = n0.y;
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vsp[i].fy[1] = n1.y;
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vsp[i].ftag = gtag;
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polymost_drawpoly(dpxy, 4, domostpolymethod);
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polymost_drawpoly(dpxy, n, domostpolymethod);
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}
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break;
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case 7:
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case 6:
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{
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vec2f_t const dpxy[3] = { { dx0, n0.y }, { dx1, vsp[i].fy[1] }, { dx0, vsp[i].fy[0] } };
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vec2f_t dpxy[8] = { { dx0, n0.y }, { dx1, vsp[i].fy[1] }, { dx0, vsp[i].fy[0] } };
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int n = 3;
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polymost_clipmost(dpxy, n, x0, x1, y0top, y0bot, y1top, y1bot);
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vsp[i].fy[0] = n0.y;
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vsp[i].ftag = gtag;
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polymost_drawpoly(dpxy, 3, domostpolymethod);
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polymost_drawpoly(dpxy, n, domostpolymethod);
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}
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break;
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case 5:
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case 2:
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{
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vec2f_t const dpxy[3] = { { dx0, vsp[i].fy[0] }, { dx1, n1.y }, { dx1, vsp[i].fy[1] } };
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vec2f_t dpxy[8] = { { dx0, vsp[i].fy[0] }, { dx1, n1.y }, { dx1, vsp[i].fy[1] } };
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int n = 3;
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polymost_clipmost(dpxy, n, x0, x1, y0top, y0bot, y1top, y1bot);
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vsp[i].fy[1] = n1.y;
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vsp[i].ftag = gtag;
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polymost_drawpoly(dpxy, 3, domostpolymethod);
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polymost_drawpoly(dpxy, n, domostpolymethod);
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}
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break;
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case 0:
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{
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vec2f_t const dpxy[4] = { { dx0, vsp[i].cy[0] }, { dx1, vsp[i].cy[1] }, { dx1, vsp[i].fy[1] }, { dx0, vsp[i].fy[0] } };
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vec2f_t dpxy[8] = { { dx0, vsp[i].cy[0] }, { dx1, vsp[i].cy[1] }, { dx1, vsp[i].fy[1] }, { dx0, vsp[i].fy[0] } };
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int n = 4;
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polymost_clipmost(dpxy, n, x0, x1, y0top, y0bot, y1top, y1bot);
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vsp[i].ctag = vsp[i].ftag = -1;
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polymost_drawpoly(dpxy, 4, domostpolymethod);
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polymost_drawpoly(dpxy, n, domostpolymethod);
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}
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default:
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break;
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@ -4356,9 +4459,7 @@ static void polymost_drawalls(int32_t const bunch)
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if (!(globalorientation&1))
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{
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#ifdef YAX_ENABLE
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if (globalposz <= sec->floorz || yax_getbunch(sectnum, YAX_FLOOR) < 0 || yax_getnextwall(wallnum, YAX_FLOOR) >= 0)
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#endif
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if (globalposz <= sec->floorz || (sec->floorstat&3) == 2)
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polymost_internal_nonparallaxed(n0, n1, ryp0, ryp1, x0, x1, fy0, fy1, sectnum | MAXSECTORS);
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}
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else if ((nextsectnum < 0) || (!(sector[nextsectnum].floorstat&1)))
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@ -4688,9 +4789,7 @@ static void polymost_drawalls(int32_t const bunch)
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if (!(globalorientation&1))
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{
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#ifdef YAX_ENABLE
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if (globalposz >= sec->ceilingz || yax_getbunch(sectnum, YAX_CEILING) < 0 || yax_getnextwall(wallnum, YAX_CEILING) >= 0)
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#endif
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if (globalposz >= sec->ceilingz || (sec->ceilingstat&3) == 2)
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polymost_internal_nonparallaxed(n0, n1, ryp0, ryp1, x0, x1, cy0, cy1, sectnum);
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}
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else if ((nextsectnum < 0) || (!(sector[nextsectnum].ceilingstat&1)))
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@ -5050,7 +5149,7 @@ static void polymost_drawalls(int32_t const bunch)
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calc_and_apply_fog(wal->picnum, fogshade(wal->shade, wal->pal), sec->visibility, get_floor_fogpal(sec));
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pow2xsplit = 1; polymost_domost(x1,ocy1,x0,ocy0);
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pow2xsplit = 1; polymost_domost(x1,ocy1,x0,ocy0,cy1,ocy1,cy0,ocy0);
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if (wal->cstat&8) { xtex.u = ogux; ytex.u = oguy; otex.u = oguo; }
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}
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if (((ofy0 < fy0) || (ofy1 < fy1)) && (!((sec->floorstat§or[nextsectnum].floorstat)&1)))
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@ -5087,7 +5186,7 @@ static void polymost_drawalls(int32_t const bunch)
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calc_and_apply_fog(nwal->picnum, fogshade(nwal->shade, nwal->pal), sec->visibility, get_floor_fogpal(sec));
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pow2xsplit = 1; polymost_domost(x0,ofy0,x1,ofy1);
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pow2xsplit = 1; polymost_domost(x0,ofy0,x1,ofy1,ofy0,fy0,ofy1,fy1);
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if (wal->cstat&(2+8)) { otex.u = oguo; xtex.u = ogux; ytex.u = oguy; }
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}
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}
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@ -5134,7 +5233,7 @@ static void polymost_drawalls(int32_t const bunch)
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if (wal->cstat&256) { xtex.v = -xtex.v; ytex.v = -ytex.v; otex.v = -otex.v; } //yflip
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calc_and_apply_fog(wal->picnum, fogshade(wal->shade, wal->pal), sec->visibility, get_floor_fogpal(sec));
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pow2xsplit = 1; polymost_domost(x0, cy0, x1, cy1);
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pow2xsplit = 1; polymost_domost(x0, cy0, x1, cy1, cy0, fy0, cy1, fy1);
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} while (0);
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}
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