/*
================
R_AliasPrepareUnclippedPoints
================
*/
void R_AliasPrepareUnclippedPoints (void)
{
stvert_t *pstverts;
finalvert_t *fv;
pstverts = (stvert_t *)((byte *)paliashdr + paliashdr->stverts);
r_anumverts = pmdl->numverts;
// FIXME: just use pfinalverts directly?
fv = pfinalverts;
#ifdef INTERPOL7
R_AliasTransformAndProjectFinalVertsLerp (fv, pstverts);
#else
R_AliasTransformAndProjectFinalVerts (fv, pstverts);
#endif
if (r_affinetridesc.drawtype)
D_PolysetDrawFinalVerts (fv, r_anumverts);
r_affinetridesc.pfinalverts = pfinalverts;
r_affinetridesc.ptriangles = (mtriangle_t *)
((byte *)paliashdr + paliashdr->triangles);
r_affinetridesc.numtriangles = pmdl->numtris;
D_PolysetDraw ();
}
/*
================
R_AliasPrepareUnclippedPoints
================
*/
void R_AliasPrepareUnclippedPoints (void)
{
stvert_t *pstverts;
finalvert_t *fv;
GpError("R_AliasPrepareUnliccpedPoints A",12);
pstverts = (stvert_t *)((byte *)paliashdr + paliashdr->stverts);
r_anumverts = pmdl->numverts;
// FIXME: just use pfinalverts directly?
fv = pfinalverts;
GpError("R_AliasPrepareUnliccpedPoints B",12);
R_AliasTransformAndProjectFinalVerts (fv, pstverts);
if (r_affinetridesc.drawtype){
GpError("R_AliasPrepareUnliccpedPoints B",13);
D_PolysetDrawFinalVerts (fv, r_anumverts);
}
r_affinetridesc.pfinalverts = pfinalverts;
r_affinetridesc.ptriangles = (mtriangle_t *)
((byte *)paliashdr + paliashdr->triangles);
r_affinetridesc.numtriangles = pmdl->numtris;
GpError("R_AliasPrepareUnliccpedPoints C",13);
D_PolysetDraw ();
GpError("R_AliasPrepareUnliccpedPoints end",13);
}
static void
R_IQMPreparePoints (iqm_t *iqm, swiqm_t *sw, iqmframe_t *frame)
{
finalvert_t *fv = pfinalverts;
auxvert_t *av = pauxverts;
int i;
uint32_t j;
finalvert_t *pfv[3];
for (i = 0; i < iqm->num_verts; i++, fv++, av++) {
byte *vert = iqm->vertices + i * iqm->stride;
uint32_t bind = *(uint32_t *) (vert + sw->bindices->offset);
vec_t *mat = (vec_t *) &frame[bind];
float *position = (float *) (vert + sw->position->offset);
float *normal = (float *) (vert + sw->normal->offset);
int32_t *texcoord = (int32_t *) (vert + sw->texcoord->offset);
vec3_t tv, tn;
Mat4MultVec (mat, position, tv);
Mat4as3MultVec (mat, normal, tn);
av->fv[0] = DotProduct (tv, aliastransform[0]) + aliastransform[0][3];
av->fv[1] = DotProduct (tv, aliastransform[1]) + aliastransform[1][3];
av->fv[2] = DotProduct (tv, aliastransform[2]) + aliastransform[2][3];
fv->v[2] = texcoord[0];
fv->v[3] = texcoord[1];
fv->flags = 0;
fv->v[4] = calc_light (tn);
R_AliasClipAndProjectFinalVert (fv, av);
}
for (i = 0; i < iqm->num_meshes; i++) {
iqmmesh *mesh = &iqm->meshes[i];
mtriangle_t *mtri;
iqm_setup_skin (sw, i);
mtri = (mtriangle_t *) iqm->elements + mesh->first_triangle;
r_affinetridesc.numtriangles = 1;
for (j = 0; j < mesh->num_triangles; j++, mtri++) {
pfv[0] = &pfinalverts[mtri->vertindex[0]];
pfv[1] = &pfinalverts[mtri->vertindex[1]];
pfv[2] = &pfinalverts[mtri->vertindex[2]];
if (pfv[0]->flags & pfv[1]->flags & pfv[2]->flags
& (ALIAS_XY_CLIP_MASK | ALIAS_Z_CLIP))
continue; // completely clipped
if (!((pfv[0]->flags | pfv[1]->flags | pfv[2]->flags)
& (ALIAS_XY_CLIP_MASK | ALIAS_Z_CLIP))) {// totally unclipped
r_affinetridesc.pfinalverts = pfinalverts;
r_affinetridesc.ptriangles = mtri;
D_PolysetDraw ();
} else { // partially clipped
R_AliasClipTriangle (mtri);
}
}
}
}
/*
R_AliasPreparePoints
General clipped case
*/
static void
R_AliasPreparePoints (void)
{
int i;
stvert_t *pstverts;
finalvert_t *fv;
auxvert_t *av;
mtriangle_t *ptri;
finalvert_t *pfv[3];
pstverts = (stvert_t *) ((byte *) paliashdr + paliashdr->stverts);
r_anumverts = pmdl->numverts;
fv = pfinalverts;
av = pauxverts;
if (pmdl->ident == HEADER_MDL16) {
for (i = 0; i < r_anumverts; i++, fv++, av++, r_apverts++,
pstverts++) {
R_AliasTransformFinalVert16 (av, r_apverts);
R_AliasTransformFinalVert (fv, r_apverts, pstverts);
R_AliasClipAndProjectFinalVert (fv, av);
}
} else {
for (i = 0; i < r_anumverts; i++, fv++, av++, r_apverts++,
pstverts++) {
R_AliasTransformFinalVert8 (av, r_apverts);
R_AliasTransformFinalVert (fv, r_apverts, pstverts);
R_AliasClipAndProjectFinalVert (fv, av);
}
}
// clip and draw all triangles
r_affinetridesc.numtriangles = 1;
ptri = (mtriangle_t *) ((byte *) paliashdr + paliashdr->triangles);
for (i = 0; i < pmdl->numtris; i++, ptri++) {
pfv[0] = &pfinalverts[ptri->vertindex[0]];
pfv[1] = &pfinalverts[ptri->vertindex[1]];
pfv[2] = &pfinalverts[ptri->vertindex[2]];
if (pfv[0]->flags & pfv[1]->flags & pfv[2]->flags
& (ALIAS_XY_CLIP_MASK | ALIAS_Z_CLIP))
continue; // completely clipped
if (!((pfv[0]->flags | pfv[1]->flags | pfv[2]->flags)
& (ALIAS_XY_CLIP_MASK | ALIAS_Z_CLIP))) { // totally unclipped
r_affinetridesc.pfinalverts = pfinalverts;
r_affinetridesc.ptriangles = ptri;
D_PolysetDraw ();
} else { // partially clipped
R_AliasClipTriangle (ptri);
}
}
}
void R_AliasPrepareUnclippedPointsFPM (void)
{
stvert_t *pstverts;
finalvert_t *fv;
pstverts = (stvert_t *)((byte *)paliashdr + paliashdr->stverts);
r_anumverts = pmdlFPM->numverts;
// FIXME: just use pfinalverts directly?
fv = pfinalverts;
R_AliasTransformAndProjectFinalVertsFPM (fv, pstverts);
if (r_affinetridesc.drawtype)
// D_PolysetDrawFinalVertsFPM (fv, r_anumverts); // FPM doesn't exist
D_PolysetDrawFinalVerts (fv, r_anumverts);
r_affinetridesc.pfinalverts = pfinalverts;
r_affinetridesc.ptriangles = (mtriangle_t *)
((byte *)paliashdr + paliashdr->triangles);
r_affinetridesc.numtriangles = pmdlFPM->numtris;
D_PolysetDraw ();
}
static void
R_IQMPrepareUnclippedPoints (iqm_t *iqm, swiqm_t *sw, iqmframe_t *frame)
{
int i;
R_IQMTransformAndProjectFinalVerts (iqm, sw, frame);
if (r_affinetridesc.drawtype)
D_PolysetDrawFinalVerts (pfinalverts, iqm->num_verts);
r_affinetridesc.pfinalverts = pfinalverts;
for (i = 0; i < iqm->num_meshes; i++) {
iqmmesh *mesh = &iqm->meshes[i];
uint16_t *tris;
iqm_setup_skin (sw, i);
tris = iqm->elements + mesh->first_triangle;
r_affinetridesc.ptriangles = (mtriangle_t *) tris;
r_affinetridesc.numtriangles = mesh->num_triangles;
D_PolysetDraw ();
}
}
/*
================
R_AliasPreparePoints
General clipped case
================
*/
void R_AliasPreparePoints(void)
{
int i;
stvert_t *pstverts;
finalvert_t *fv;
auxvert_t *av;
mtriangle_t *ptri;
finalvert_t *pfv[3];
pstverts = (stvert_t *)((byte *)paliashdr + paliashdr->stverts);
r_anumverts = pmdl->numverts;
fv = pfinalverts;
av = pauxverts;
for (i=0 ; i<r_anumverts ; i++, fv++, av++, r_apverts++, pstverts++)
{
R_AliasTransformFinalVert(fv, av, r_apverts, pstverts);
if (av->fv[2] < ALIAS_Z_CLIP_PLANE)
{
fv->flags |= ALIAS_Z_CLIP;
}
else
{
R_AliasProjectFinalVert(fv, av);
if (fv->v[0] < r_refdef.aliasvrect.x)
{
fv->flags |= ALIAS_LEFT_CLIP;
}
if (fv->v[1] < r_refdef.aliasvrect.y)
{
fv->flags |= ALIAS_TOP_CLIP;
}
if (fv->v[0] > r_refdef.aliasvrectright)
{
fv->flags |= ALIAS_RIGHT_CLIP;
}
if (fv->v[1] > r_refdef.aliasvrectbottom)
{
fv->flags |= ALIAS_BOTTOM_CLIP;
}
}
}
//
// clip and draw all triangles
//
r_affinetridesc.numtriangles = 1;
ptri = (mtriangle_t *)((byte *)paliashdr + paliashdr->triangles);
for (i=0 ; i<pmdl->numtris ; i++, ptri++)
{
pfv[0] = &pfinalverts[ptri->vertindex[0]];
pfv[1] = &pfinalverts[ptri->vertindex[1]];
pfv[2] = &pfinalverts[ptri->vertindex[2]];
if (pfv[0]->flags & pfv[1]->flags & pfv[2]->flags & (ALIAS_XY_CLIP_MASK | ALIAS_Z_CLIP))
{
continue; // completely clipped
}
if (!((pfv[0]->flags | pfv[1]->flags | pfv[2]->flags) &
(ALIAS_XY_CLIP_MASK | ALIAS_Z_CLIP)))
{
// totally unclipped
r_affinetridesc.pfinalverts = pfinalverts;
r_affinetridesc.ptriangles = ptri;
D_PolysetDraw();
}
else
{
// partially clipped
R_AliasClipTriangle(ptri);
}
}
}
/*
================
R_AliasClipTriangle
================
*/
void R_AliasClipTriangle (mtriangle_t *ptri)
{
int i, k, pingpong;
mtriangle_t mtri;
unsigned int clipflags;
// copy vertexes and fix seam texture coordinates
if (ptri->facesfront)
{
fv[0][0] = pfinalverts[ptri->vertindex[0]];
fv[0][1] = pfinalverts[ptri->vertindex[1]];
fv[0][2] = pfinalverts[ptri->vertindex[2]];
}
else
{
for (i = 0; i < 3; i++)
{
fv[0][i] = pfinalverts[ptri->vertindex[i]];
if (fv[0][i].flags & ALIAS_ONSEAM)
fv[0][i].v[2] += r_affinetridesc.seamfixupX16;
}
}
// clip
clipflags = fv[0][0].flags | fv[0][1].flags | fv[0][2].flags;
if (clipflags & ALIAS_Z_CLIP)
{
for (i = 0; i < 3; i++)
av[i] = pauxverts[ptri->vertindex[i]];
k = R_AliasClip (fv[0], fv[1], ALIAS_Z_CLIP, 3, R_Alias_clip_z);
if (k == 0)
return;
pingpong = 1;
clipflags = fv[1][0].flags | fv[1][1].flags | fv[1][2].flags;
}
else
{
pingpong = 0;
k = 3;
}
if (clipflags & ALIAS_LEFT_CLIP)
{
k = R_AliasClip (fv[pingpong], fv[pingpong ^ 1],
ALIAS_LEFT_CLIP, k, R_Alias_clip_left);
if (k == 0)
return;
pingpong ^= 1;
}
if (clipflags & ALIAS_RIGHT_CLIP)
{
k = R_AliasClip (fv[pingpong], fv[pingpong ^ 1],
ALIAS_RIGHT_CLIP, k, R_Alias_clip_right);
if (k == 0)
return;
pingpong ^= 1;
}
if (clipflags & ALIAS_BOTTOM_CLIP)
{
k = R_AliasClip (fv[pingpong], fv[pingpong ^ 1],
ALIAS_BOTTOM_CLIP, k, R_Alias_clip_bottom);
if (k == 0)
return;
pingpong ^= 1;
}
if (clipflags & ALIAS_TOP_CLIP)
{
k = R_AliasClip (fv[pingpong], fv[pingpong ^ 1],
ALIAS_TOP_CLIP, k, R_Alias_clip_top);
if (k == 0)
return;
pingpong ^= 1;
}
for (i = 0; i < k; i++)
{
if (fv[pingpong][i].v[0] < r_refdef.aliasvrect.x)
fv[pingpong][i].v[0] = r_refdef.aliasvrect.x;
else if (fv[pingpong][i].v[0] > r_refdef.aliasvrectright)
fv[pingpong][i].v[0] = r_refdef.aliasvrectright;
if (fv[pingpong][i].v[1] < r_refdef.aliasvrect.y)
fv[pingpong][i].v[1] = r_refdef.aliasvrect.y;
else if (fv[pingpong][i].v[1] > r_refdef.aliasvrectbottom)
fv[pingpong][i].v[1] = r_refdef.aliasvrectbottom;
fv[pingpong][i].flags = 0;
}
// draw triangles
mtri.facesfront = ptri->facesfront;
r_affinetridesc.ptriangles = &mtri;
r_affinetridesc.pfinalverts = fv[pingpong];
// FIXME: do all at once as trifan?
mtri.vertindex[0] = 0;
for (i = 1; i < k - 1; i++)
{
mtri.vertindex[1] = i;
mtri.vertindex[2] = i+1;
if ((currententity->model->flags & EF_SPECIAL_TRANS))
D_PolysetDrawT5 ();
else if (currententity->drawflags & DRF_TRANSLUCENT)
D_PolysetDrawT ();
else if ((currententity->model->flags & EF_TRANSPARENT))
D_PolysetDrawT2 ();
else if ((currententity->model->flags & EF_HOLEY))
D_PolysetDrawT3 ();
else
D_PolysetDraw ();
}
}
/*
================
R_AliasPrepareUnclippedPoints
================
*/
void R_AliasPrepareUnclippedPoints (void)
{
stvert_t *pstverts;
finalvert_t *fv;
mtriangle_t *ptri;
int i;
pstverts = (stvert_t *)((byte *)paliashdr + paliashdr->stverts);
r_anumverts = pmdl->numverts;
// FIXME: just use pfinalverts directly?
fv = pfinalverts;
R_AliasTransformAndProjectFinalVerts (fv, pstverts);
r_affinetridesc.pfinalverts = pfinalverts;
r_affinetridesc.ptriangles = (mtriangle_t *)
((byte *)paliashdr + paliashdr->triangles);
r_affinetridesc.numtriangles = 1;//pmdl->numtris;
ptri = (mtriangle_t *)((byte *)paliashdr + paliashdr->triangles);
for (i = 0 ; i < pmdl->numtris ; i++, ptri++)
{
finalvert_t *pfv[3];
pfv[0] = &pfinalverts[ptri->vertindex[0]];
pfv[1] = &pfinalverts[ptri->vertindex[1]];
pfv[2] = &pfinalverts[ptri->vertindex[2]];
//jfm: fill in the triangles s and t into the finalvert
pfv[0]->v[2] = pstverts[ptri->stindex[0]].s;
pfv[0]->v[3] = pstverts[ptri->stindex[0]].t;
pfv[0]->flags = pstverts[ptri->stindex[0]].onseam;
pfv[1]->v[2] = pstverts[ptri->stindex[1]].s;
pfv[1]->v[3] = pstverts[ptri->stindex[1]].t;
pfv[1]->flags = pstverts[ptri->stindex[1]].onseam;
pfv[2]->v[2] = pstverts[ptri->stindex[2]].s;
pfv[2]->v[3] = pstverts[ptri->stindex[2]].t;
pfv[2]->flags = pstverts[ptri->stindex[2]].onseam;
r_affinetridesc.ptriangles = ptri;
if (r_affinetridesc.drawtype)
{
if ((currententity->model->flags & EF_SPECIAL_TRANS))
{
D_PolysetDrawFinalVertsT5 (pfv[0],pfv[1],pfv[2]);
D_PolysetDrawT5 ();
}
else if (currententity->drawflags & DRF_TRANSLUCENT)
{
D_PolysetDrawFinalVertsT (pfv[0],pfv[1],pfv[2]);
D_PolysetDrawT ();
}
else if ((currententity->model->flags & EF_TRANSPARENT))
{
D_PolysetDrawFinalVertsT2 (pfv[0],pfv[1],pfv[2]);
D_PolysetDrawT2 ();
}
else if ((currententity->model->flags & EF_HOLEY))
{
D_PolysetDrawFinalVertsT3 (pfv[0],pfv[1],pfv[2]);
D_PolysetDrawT3 ();
}
else
{
D_PolysetDrawFinalVerts (pfv[0],pfv[1],pfv[2]);
D_PolysetDraw ();
}
}
else
{
if ((currententity->model->flags & EF_SPECIAL_TRANS))
D_PolysetDrawT5 ();
else if (currententity->drawflags & DRF_TRANSLUCENT)
D_PolysetDrawT ();
else if ((currententity->model->flags & EF_TRANSPARENT))
D_PolysetDrawT2 ();
else if ((currententity->model->flags & EF_HOLEY))
D_PolysetDrawT3 ();
else
D_PolysetDraw ();
}
}
}
/*
================
R_AliasPreparePoints
General clipped case
================
*/
static void R_AliasPreparePoints (void)
{
int i;
stvert_t *pstverts;
finalvert_t *fv;
auxvert_t *av;
mtriangle_t *ptri;
finalvert_t *pfv[3];
pstverts = (stvert_t *)((byte *)paliashdr + paliashdr->stverts);
r_anumverts = pmdl->numverts;
fv = pfinalverts;
av = pauxverts;
for (i = 0 ; i < r_anumverts ; i++, fv++, av++, r_apverts++)
{
fv->flags = 0;
R_AliasTransformFinalVert (fv, av, r_apverts);
if (av->fv[2] < ALIAS_Z_CLIP_PLANE)
fv->flags |= ALIAS_Z_CLIP;
else
{
R_AliasProjectFinalVert (fv, av);
if (fv->v[0] < r_refdef.aliasvrect.x)
fv->flags |= ALIAS_LEFT_CLIP;
if (fv->v[1] < r_refdef.aliasvrect.y)
fv->flags |= ALIAS_TOP_CLIP;
if (fv->v[0] > r_refdef.aliasvrectright)
fv->flags |= ALIAS_RIGHT_CLIP;
if (fv->v[1] > r_refdef.aliasvrectbottom)
fv->flags |= ALIAS_BOTTOM_CLIP;
}
}
//
// clip and draw all triangles
//
r_affinetridesc.numtriangles = 1;
ptri = (mtriangle_t *)((byte *)paliashdr + paliashdr->triangles);
for (i = 0 ; i < pmdl->numtris ; i++, ptri++)
{
pfv[0] = &pfinalverts[ptri->vertindex[0]];
pfv[1] = &pfinalverts[ptri->vertindex[1]];
pfv[2] = &pfinalverts[ptri->vertindex[2]];
if ( pfv[0]->flags & pfv[1]->flags & pfv[2]->flags & (ALIAS_XY_CLIP_MASK | ALIAS_Z_CLIP) )
continue; // completely clipped
//jfm: fill in the triangles s and t into the finalvert
pfv[0]->v[2] = pstverts[ptri->stindex[0]].s;
pfv[0]->v[3] = pstverts[ptri->stindex[0]].t;
pfv[0]->flags |= pstverts[ptri->stindex[0]].onseam;
pfv[1]->v[2] = pstverts[ptri->stindex[1]].s;
pfv[1]->v[3] = pstverts[ptri->stindex[1]].t;
pfv[1]->flags |= pstverts[ptri->stindex[1]].onseam;
pfv[2]->v[2] = pstverts[ptri->stindex[2]].s;
pfv[2]->v[3] = pstverts[ptri->stindex[2]].t;
pfv[2]->flags |= pstverts[ptri->stindex[2]].onseam;
if ( ! ( (pfv[0]->flags | pfv[1]->flags | pfv[2]->flags) & (ALIAS_XY_CLIP_MASK | ALIAS_Z_CLIP) ) )
{ // totally unclipped
r_affinetridesc.pfinalverts = pfinalverts;
r_affinetridesc.ptriangles = ptri;
if ((currententity->model->flags & EF_SPECIAL_TRANS))
D_PolysetDrawT5 ();
else if (currententity->drawflags & DRF_TRANSLUCENT)
D_PolysetDrawT ();
else if ((currententity->model->flags & EF_TRANSPARENT))
D_PolysetDrawT2 ();
else if ((currententity->model->flags & EF_HOLEY))
D_PolysetDrawT3 ();
else
D_PolysetDraw ();
}
else
{ // partially clipped
R_AliasClipTriangle (ptri);
}
}
}