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move high precision check out of loop to optimize sw model rendering

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This commit is contained in:
Seth Galbraith 2002-01-05 20:00:50 +00:00
parent 8c2d3f65c3
commit 0a7ddae612
2 changed files with 137 additions and 82 deletions
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106
libs/video/renderer/sw/sw_ralias.c
View file

@ -254,6 +254,55 @@ R_AliasTransformVector (vec3_t in, vec3_t out)
}
void
R_AliasClipAndProjectFinalVert (finalvert_t *fv, auxvert_t *av)
{
if (av->fv[2] < ALIAS_Z_CLIP_PLANE) {
fv->flags |= ALIAS_Z_CLIP;
return;
}
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;
}
void
R_AliasTransformFinalVert16 (finalvert_t *fv, auxvert_t *av, trivertx_t *pverts)
{
trivertx_t * pextra;
float vextra[3];
pextra = pverts + pmdl->numverts;
vextra[0] = pverts->v[0] + pextra->v[0] / (float)256;
vextra[1] = pverts->v[1] + pextra->v[1] / (float)256;
vextra[2] = pverts->v[2] + pextra->v[2] / (float)256;
av->fv[0] = DotProduct (vextra, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (vextra, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (vextra, aliastransform[2]) +
aliastransform[2][3];
}
void
R_AliasTransformFinalVert8 (finalvert_t *fv, auxvert_t *av, trivertx_t *pverts)
{
av->fv[0] = DotProduct (pverts->v, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (pverts->v, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (pverts->v, aliastransform[2]) +
aliastransform[2][3];
}
/*
R_AliasPreparePoints
@ -274,21 +323,20 @@ R_AliasPreparePoints (void)
fv = pfinalverts;
av = pauxverts;
for (i = 0; i < r_anumverts; i++, fv++, av++, r_apverts++, pstverts++) {
if (pmdl->ident == POLYHEADER16) {
for (i = 0; i < r_anumverts; i++, fv++, av++, r_apverts++,
pstverts++) {
R_AliasTransformFinalVert16 (fv, av, r_apverts);
R_AliasTransformFinalVert (fv, av, r_apverts, pstverts);
if (av->fv[2] < ALIAS_Z_CLIP_PLANE)
fv->flags |= ALIAS_Z_CLIP;
R_AliasClipAndProjectFinalVert (fv, av);
}
}
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;
for (i = 0; i < r_anumverts; i++, fv++, av++, r_apverts++,
pstverts++) {
R_AliasTransformFinalVert8 (fv, av, r_apverts);
R_AliasTransformFinalVert (fv, av, r_apverts, pstverts);
R_AliasClipAndProjectFinalVert (fv, av);
}
}
@ -387,6 +435,12 @@ R_AliasSetUpTransform (int trivial_accept)
}
}
/*
R_AliasTransformFinalVert
now this function just copies the texture coordinates and calculates lighting
actual 3D transform is done by R_AliasTransformFinalVert8/16 functions above
*/
void
R_AliasTransformFinalVert (finalvert_t *fv, auxvert_t *av,
trivertx_t *pverts, stvert_t *pstverts)
@ -394,32 +448,6 @@ R_AliasTransformFinalVert (finalvert_t *fv, auxvert_t *av,
int temp;
float lightcos, *plightnormal;
if (pmdl->ident == POLYHEADER16)
{
trivertx_t * pextra;
float vextra[3];
pextra = pverts + pmdl->numverts;
vextra[0] = pverts->v[0] + pextra->v[0] / (float)256;
vextra[1] = pverts->v[1] + pextra->v[1] / (float)256;
vextra[2] = pverts->v[2] + pextra->v[2] / (float)256;
av->fv[0] = DotProduct (vextra, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (vextra, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (vextra, aliastransform[2]) +
aliastransform[2][3];
}
else
{
av->fv[0] = DotProduct (pverts->v, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (pverts->v, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (pverts->v, aliastransform[2]) +
aliastransform[2][3];
}
fv->v[2] = pstverts->s;
fv->v[3] = pstverts->t;

105
libs/video/renderer/sw32/sw32_ralias.c
View file

@ -255,6 +255,55 @@ R_AliasTransformVector (vec3_t in, vec3_t out)
}
void
R_AliasClipAndProjectFinalVert (finalvert_t *fv, auxvert_t *av)
{
if (av->fv[2] < ALIAS_Z_CLIP_PLANE) {
fv->flags |= ALIAS_Z_CLIP;
return;
}
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;
}
void
R_AliasTransformFinalVert16 (finalvert_t *fv, auxvert_t *av, trivertx_t *pverts)
{
trivertx_t * pextra;
float vextra[3];
pextra = pverts + pmdl->numverts;
vextra[0] = pverts->v[0] + pextra->v[0] / (float)256;
vextra[1] = pverts->v[1] + pextra->v[1] / (float)256;
vextra[2] = pverts->v[2] + pextra->v[2] / (float)256;
av->fv[0] = DotProduct (vextra, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (vextra, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (vextra, aliastransform[2]) +
aliastransform[2][3];
}
void
R_AliasTransformFinalVert8 (finalvert_t *fv, auxvert_t *av, trivertx_t *pverts)
{
av->fv[0] = DotProduct (pverts->v, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (pverts->v, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (pverts->v, aliastransform[2]) +
aliastransform[2][3];
}
/*
R_AliasPreparePoints
@ -275,21 +324,20 @@ R_AliasPreparePoints (void)
fv = pfinalverts;
av = pauxverts;
for (i = 0; i < r_anumverts; i++, fv++, av++, r_apverts++, pstverts++) {
if (pmdl->ident == POLYHEADER16) {
for (i = 0; i < r_anumverts; i++, fv++, av++, r_apverts++,
pstverts++) {
R_AliasTransformFinalVert16 (fv, av, r_apverts);
R_AliasTransformFinalVert (fv, av, r_apverts, pstverts);
if (av->fv[2] < ALIAS_Z_CLIP_PLANE)
fv->flags |= ALIAS_Z_CLIP;
R_AliasClipAndProjectFinalVert (fv, av);
}
}
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;
for (i = 0; i < r_anumverts; i++, fv++, av++, r_apverts++,
pstverts++) {
R_AliasTransformFinalVert8 (fv, av, r_apverts);
R_AliasTransformFinalVert (fv, av, r_apverts, pstverts);
R_AliasClipAndProjectFinalVert (fv, av);
}
}
@ -387,7 +435,12 @@ R_AliasSetUpTransform (int trivial_accept)
}
}
/*
R_AliasTransformFinalVert
now this function just copies the texture coordinates and calculates lighting
actual 3D transform is done by R_AliasTransformFinalVert8/16 functions above
*/
void
R_AliasTransformFinalVert (finalvert_t *fv, auxvert_t *av,
trivertx_t *pverts, stvert_t *pstverts)
@ -395,32 +448,6 @@ R_AliasTransformFinalVert (finalvert_t *fv, auxvert_t *av,
int temp;
float lightcos, *plightnormal;
if (pmdl->ident == POLYHEADER16)
{
trivertx_t * pextra;
float vextra[3];
pextra = pverts + pmdl->numverts;
vextra[0] = pverts->v[0] + pextra->v[0] / (float)256;
vextra[1] = pverts->v[1] + pextra->v[1] / (float)256;
vextra[2] = pverts->v[2] + pextra->v[2] / (float)256;
av->fv[0] = DotProduct (vextra, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (vextra, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (vextra, aliastransform[2]) +
aliastransform[2][3];
}
else
{
av->fv[0] = DotProduct (pverts->v, aliastransform[0]) +
aliastransform[0][3];
av->fv[1] = DotProduct (pverts->v, aliastransform[1]) +
aliastransform[1][3];
av->fv[2] = DotProduct (pverts->v, aliastransform[2]) +
aliastransform[2][3];
}
fv->v[2] = pstverts->s;
fv->v[3] = pstverts->t;