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soft: reuse R_Alias_clip_scale

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Denis Pauk 2022-03-19 22:59:14 +02:00
parent 5fcf0a3afc
commit 5eed0ca5d9
1 changed files with 24 additions and 82 deletions
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106
src/client/refresh/soft/sw_aclip.c
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@ -52,6 +52,22 @@ R_Alias_clip_z (const finalvert_t *pfv0, const finalvert_t *pfv1, finalvert_t *o
R_AliasProjectAndClipTestFinalVert (out); R_AliasProjectAndClipTestFinalVert (out);
} }
static void
R_Alias_clip_scale (const finalvert_t *pfv0, const finalvert_t *pfv1, float scale, finalvert_t *out)
{
int i;
out->cv.u = pfv1->cv.u + ( pfv0->cv.u - pfv1->cv.u ) * scale + 0.5;
out->cv.v = pfv1->cv.v + ( pfv0->cv.v - pfv1->cv.v ) * scale + 0.5;
out->cv.s = pfv1->cv.s + ( pfv0->cv.s - pfv1->cv.s ) * scale + 0.5;
out->cv.t = pfv1->cv.t + ( pfv0->cv.t - pfv1->cv.t ) * scale + 0.5;
for(i=0; i<3; i++)
out->cv.l[i] = pfv1->cv.l[i] + ( pfv0->cv.l[i] - pfv1->cv.l[i] ) * scale + 0.5;
out->cv.zi = pfv1->cv.zi + ( pfv0->cv.zi - pfv1->cv.zi) * scale + 0.5;
}
static void static void
R_Alias_clip_left (const finalvert_t *pfv0, const finalvert_t *pfv1, finalvert_t *out) R_Alias_clip_left (const finalvert_t *pfv0, const finalvert_t *pfv1, finalvert_t *out)
{ {
@ -59,35 +75,17 @@ R_Alias_clip_left (const finalvert_t *pfv0, const finalvert_t *pfv1, finalvert_t
if (pfv0->cv.v >= pfv1->cv.v ) if (pfv0->cv.v >= pfv1->cv.v )
{ {
int i;
scale = (float)(r_refdef.aliasvrect.x - pfv0->cv.u) / scale = (float)(r_refdef.aliasvrect.x - pfv0->cv.u) /
(pfv1->cv.u - pfv0->cv.u); (pfv1->cv.u - pfv0->cv.u);
out->cv.u = pfv0->cv.u + ( pfv1->cv.u - pfv0->cv.u ) * scale + 0.5;
out->cv.v = pfv0->cv.v + ( pfv1->cv.v - pfv0->cv.v ) * scale + 0.5;
out->cv.s = pfv0->cv.s + ( pfv1->cv.s - pfv0->cv.s ) * scale + 0.5;
out->cv.t = pfv0->cv.t + ( pfv1->cv.t - pfv0->cv.t ) * scale + 0.5;
for(i=0; i<3; i++) R_Alias_clip_scale (pfv1, pfv0, scale, out);
out->cv.l[i] = pfv1->cv.l[i] + ( pfv0->cv.l[i] - pfv1->cv.l[i] ) * scale + 0.5;
out->cv.zi = pfv0->cv.zi + ( pfv1->cv.zi - pfv0->cv.zi) * scale + 0.5;
} }
else else
{ {
int i;
scale = (float)(r_refdef.aliasvrect.x - pfv1->cv.u) / scale = (float)(r_refdef.aliasvrect.x - pfv1->cv.u) /
(pfv0->cv.u - pfv1->cv.u); (pfv0->cv.u - pfv1->cv.u);
out->cv.u = pfv1->cv.u + ( pfv0->cv.u - pfv1->cv.u ) * scale + 0.5;
out->cv.v = pfv1->cv.v + ( pfv0->cv.v - pfv1->cv.v ) * scale + 0.5;
out->cv.s = pfv1->cv.s + ( pfv0->cv.s - pfv1->cv.s ) * scale + 0.5;
out->cv.t = pfv1->cv.t + ( pfv0->cv.t - pfv1->cv.t ) * scale + 0.5;
for(i=0; i<3; i++) R_Alias_clip_scale (pfv0, pfv1, scale, out);
out->cv.l[i] = pfv1->cv.l[i] + ( pfv0->cv.l[i] - pfv1->cv.l[i] ) * scale + 0.5;
out->cv.zi = pfv1->cv.zi + ( pfv0->cv.zi - pfv1->cv.zi) * scale + 0.5;
} }
} }
@ -98,35 +96,17 @@ R_Alias_clip_right (const finalvert_t *pfv0, const finalvert_t *pfv1, finalvert_
if ( pfv0->cv.v >= pfv1->cv.v ) if ( pfv0->cv.v >= pfv1->cv.v )
{ {
int i;
scale = (float)(r_refdef.aliasvrectright - pfv0->cv.u ) / scale = (float)(r_refdef.aliasvrectright - pfv0->cv.u ) /
(pfv1->cv.u - pfv0->cv.u ); (pfv1->cv.u - pfv0->cv.u );
out->cv.u = pfv0->cv.u + ( pfv1->cv.u - pfv0->cv.u ) * scale + 0.5;
out->cv.v = pfv0->cv.v + ( pfv1->cv.v - pfv0->cv.v ) * scale + 0.5;
out->cv.s = pfv0->cv.s + ( pfv1->cv.s - pfv0->cv.s ) * scale + 0.5;
out->cv.t = pfv0->cv.t + ( pfv1->cv.t - pfv0->cv.t ) * scale + 0.5;
for(i=0; i<3; i++) R_Alias_clip_scale (pfv1, pfv0, scale, out);
out->cv.l[i] = pfv0->cv.l[i] + ( pfv1->cv.l[i] - pfv0->cv.l[i] ) * scale + 0.5;
out->cv.zi = pfv0->cv.zi + ( pfv1->cv.zi - pfv0->cv.zi) * scale + 0.5;
} }
else else
{ {
int i;
scale = (float)(r_refdef.aliasvrectright - pfv1->cv.u ) / scale = (float)(r_refdef.aliasvrectright - pfv1->cv.u ) /
(pfv0->cv.u - pfv1->cv.u ); (pfv0->cv.u - pfv1->cv.u );
out->cv.u = pfv1->cv.u + ( pfv0->cv.u - pfv1->cv.u ) * scale + 0.5;
out->cv.v = pfv1->cv.v + ( pfv0->cv.v - pfv1->cv.v ) * scale + 0.5;
out->cv.s = pfv1->cv.s + ( pfv0->cv.s - pfv1->cv.s ) * scale + 0.5;
out->cv.t = pfv1->cv.t + ( pfv0->cv.t - pfv1->cv.t ) * scale + 0.5;
for(i=0; i<3; i++) R_Alias_clip_scale (pfv0, pfv1, scale, out);
out->cv.l[i] = pfv1->cv.l[i] + ( pfv0->cv.l[i] - pfv1->cv.l[i] ) * scale + 0.5;
out->cv.zi = pfv1->cv.zi + ( pfv0->cv.zi - pfv1->cv.zi) * scale + 0.5;
} }
} }
@ -137,35 +117,17 @@ R_Alias_clip_top (const finalvert_t *pfv0, const finalvert_t *pfv1, finalvert_t
if (pfv0->cv.v >= pfv1->cv.v) if (pfv0->cv.v >= pfv1->cv.v)
{ {
int i;
scale = (float)(r_refdef.aliasvrect.y - pfv0->cv.v) / scale = (float)(r_refdef.aliasvrect.y - pfv0->cv.v) /
(pfv1->cv.v - pfv0->cv.v); (pfv1->cv.v - pfv0->cv.v);
out->cv.u = pfv0->cv.u + ( pfv1->cv.u - pfv0->cv.u ) * scale + 0.5;
out->cv.v = pfv0->cv.v + ( pfv1->cv.v - pfv0->cv.v ) * scale + 0.5;
out->cv.s = pfv0->cv.s + ( pfv1->cv.s - pfv0->cv.s ) * scale + 0.5;
out->cv.t = pfv0->cv.t + ( pfv1->cv.t - pfv0->cv.t ) * scale + 0.5;
for(i=0; i<3; i++) R_Alias_clip_scale (pfv1, pfv0, scale, out);
out->cv.l[i] = pfv0->cv.l[i] + ( pfv1->cv.l[i] - pfv0->cv.l[i] ) * scale + 0.5;
out->cv.zi = pfv0->cv.zi + ( pfv1->cv.zi - pfv0->cv.zi) * scale + 0.5;
} }
else else
{ {
int i;
scale = (float)(r_refdef.aliasvrect.y - pfv1->cv.v) / scale = (float)(r_refdef.aliasvrect.y - pfv1->cv.v) /
(pfv0->cv.v - pfv1->cv.v); (pfv0->cv.v - pfv1->cv.v);
out->cv.u = pfv1->cv.u + ( pfv0->cv.u - pfv1->cv.u ) * scale + 0.5;
out->cv.v = pfv1->cv.v + ( pfv0->cv.v - pfv1->cv.v ) * scale + 0.5;
out->cv.s = pfv1->cv.s + ( pfv0->cv.s - pfv1->cv.s ) * scale + 0.5;
out->cv.t = pfv1->cv.t + ( pfv0->cv.t - pfv1->cv.t ) * scale + 0.5;
for(i=0; i<3; i++) R_Alias_clip_scale (pfv0, pfv1, scale, out);
out->cv.l[i] = pfv1->cv.l[i] + ( pfv0->cv.l[i] - pfv1->cv.l[i] ) * scale + 0.5;
out->cv.zi = pfv1->cv.zi + ( pfv0->cv.zi - pfv1->cv.zi) * scale + 0.5;
} }
} }
@ -177,37 +139,17 @@ R_Alias_clip_bottom (const finalvert_t *pfv0, const finalvert_t *pfv1, finalvert
if (pfv0->cv.v >= pfv1->cv.v) if (pfv0->cv.v >= pfv1->cv.v)
{ {
int i;
scale = (float)(r_refdef.aliasvrectbottom - pfv0->cv.v) / scale = (float)(r_refdef.aliasvrectbottom - pfv0->cv.v) /
(pfv1->cv.v - pfv0->cv.v); (pfv1->cv.v - pfv0->cv.v);
out->cv.u = pfv0->cv.u + ( pfv1->cv.u - pfv0->cv.u ) * scale + 0.5; R_Alias_clip_scale (pfv1, pfv0, scale, out);
out->cv.v = pfv0->cv.v + ( pfv1->cv.v - pfv0->cv.v ) * scale + 0.5;
out->cv.s = pfv0->cv.s + ( pfv1->cv.s - pfv0->cv.s ) * scale + 0.5;
out->cv.t = pfv0->cv.t + ( pfv1->cv.t - pfv0->cv.t ) * scale + 0.5;
for(i=0; i<3; i++)
out->cv.l[i] = pfv0->cv.l[i] + ( pfv1->cv.l[i] - pfv0->cv.l[i] ) * scale + 0.5;
out->cv.zi = pfv0->cv.zi + ( pfv1->cv.zi - pfv0->cv.zi) * scale + 0.5;
} }
else else
{ {
int i;
scale = (float)(r_refdef.aliasvrectbottom - pfv1->cv.v) / scale = (float)(r_refdef.aliasvrectbottom - pfv1->cv.v) /
(pfv0->cv.v - pfv1->cv.v); (pfv0->cv.v - pfv1->cv.v);
out->cv.u = pfv1->cv.u + ( pfv0->cv.u - pfv1->cv.u ) * scale + 0.5; R_Alias_clip_scale (pfv0, pfv1, scale, out);
out->cv.v = pfv1->cv.v + ( pfv0->cv.v - pfv1->cv.v ) * scale + 0.5;
out->cv.s = pfv1->cv.s + ( pfv0->cv.s - pfv1->cv.s ) * scale + 0.5;
out->cv.t = pfv1->cv.t + ( pfv0->cv.t - pfv1->cv.t ) * scale + 0.5;
for(i=0; i<3; i++)
out->cv.l[i] = pfv1->cv.l[i] + ( pfv0->cv.l[i] - pfv1->cv.l[i] ) * scale + 0.5;
out->cv.zi = pfv1->cv.zi + ( pfv0->cv.zi - pfv1->cv.zi) * scale + 0.5;
} }
} }