bfc = (nv50->state.semantic_color & NV50_3D_SEMANTIC_COLOR_BFC0_ID__MASK)
>> 8;
if (nv50->rast->pipe.light_twoside == ((ffc == bfc) ? 0 : 1))
return;
}
memset(lin, 0x00, sizeof(lin));
/* XXX: in buggy-endian mode, is the first element of map (u32)0x000000xx
* or is it the first byte ?
*/
memset(map, nv50->gmtyprog ? 0x80 : 0x40, sizeof(map));
dummy.mask = 0xf; /* map all components of HPOS */
dummy.linear = 0;
m = nv50_vec4_map(map, 0, lin, &dummy, &vp->out[0]);
for (c = 0; c < vp->vp.clpd_nr; ++c)
map[m++] = vp->vp.clpd[c / 4] + (c % 4);
colors |= m << 8; /* adjust BFC0 id */
dummy.mask = 0x0;
/* if light_twoside is active, FFC0_ID == BFC0_ID is invalid */
if (nv50->rast->pipe.light_twoside) {
for (i = 0; i < 2; ++i) {
n = vp->vp.bfc[i];
if (fp->vp.bfc[i] >= fp->in_nr)
continue;
m = nv50_vec4_map(map, m, lin, &fp->in[fp->vp.bfc[i]],
void
nv50_fp_linkage_validate(struct nv50_context *nv50)
{
struct nouveau_channel *chan = nv50->screen->base.channel;
struct nv50_program *vp = nv50->gmtyprog ? nv50->gmtyprog : nv50->vertprog;
struct nv50_program *fp = nv50->fragprog;
struct nv50_varying dummy;
int i, n, c, m;
uint32_t primid = 0;
uint32_t psiz = 0x000;
uint32_t interp = fp->fp.interp;
uint32_t colors = fp->fp.colors;
uint32_t lin[4];
uint8_t map[64];
memset(lin, 0x00, sizeof(lin));
/* XXX: in buggy-endian mode, is the first element of map (u32)0x000000xx
* or is it the first byte ?
*/
memset(map, nv50->gmtyprog ? 0x80 : 0x40, sizeof(map));
dummy.mask = 0xf; /* map all components of HPOS */
dummy.linear = 0;
m = nv50_vec4_map(map, 0, lin, &dummy, &vp->out[0]);
for (c = 0; c < vp->vp.clpd_nr; ++c)
map[m++] = vp->vp.clpd + c;
colors |= m << 8; /* adjust BFC0 id */
/* if light_twoside is active, FFC0_ID == BFC0_ID is invalid */
if (nv50->rast->pipe.light_twoside) {
for (i = 0; i < 2; ++i)
m = nv50_vec4_map(map, m, lin,
&fp->in[fp->vp.bfc[i]], &vp->out[vp->vp.bfc[i]]);
}
colors += m - 4; /* adjust FFC0 id */
interp |= m << 8; /* set map id where 'normal' FP inputs start */
dummy.mask = 0x0;
for (i = 0; i < fp->in_nr; ++i) {
for (n = 0; n < vp->out_nr; ++n)
if (vp->out[n].sn == fp->in[i].sn &&
vp->out[n].si == fp->in[i].si)
break;
m = nv50_vec4_map(map, m, lin,
&fp->in[i], (n < vp->out_nr) ? &vp->out[n] : &dummy);
}
/* PrimitiveID either is replaced by the system value, or
* written by the geometry shader into an output register
*/
if (fp->gp.primid < 0x40) {
primid = m;
map[m++] = vp->gp.primid;
}
if (nv50->rast->pipe.point_size_per_vertex) {
psiz = (m << 4) | 1;
map[m++] = vp->vp.psiz;
}
if (nv50->rast->pipe.clamp_vertex_color)
colors |= NV50_3D_MAP_SEMANTIC_0_CLMP_EN;
n = (m + 3) / 4;
assert(m <= 64);
if (unlikely(nv50->gmtyprog)) {
BEGIN_RING(chan, RING_3D(GP_RESULT_MAP_SIZE), 1);
OUT_RING (chan, m);
BEGIN_RING(chan, RING_3D(GP_RESULT_MAP(0)), n);
OUT_RINGp (chan, map, n);
} else {
BEGIN_RING(chan, RING_3D(VP_GP_BUILTIN_ATTR_EN), 1);
OUT_RING (chan, vp->vp.attrs[2]);
BEGIN_RING(chan, RING_3D(MAP_SEMANTIC_4), 1);
OUT_RING (chan, primid);
BEGIN_RING(chan, RING_3D(VP_RESULT_MAP_SIZE), 1);
OUT_RING (chan, m);
BEGIN_RING(chan, RING_3D(VP_RESULT_MAP(0)), n);
OUT_RINGp (chan, map, n);
}
BEGIN_RING(chan, RING_3D(MAP_SEMANTIC_0), 4);
OUT_RING (chan, colors);
OUT_RING (chan, (vp->vp.clpd_nr << 8) | 4);
OUT_RING (chan, 0);
OUT_RING (chan, psiz);
BEGIN_RING(chan, RING_3D(FP_INTERPOLANT_CTRL), 1);
OUT_RING (chan, interp);
nv50->state.interpolant_ctrl = interp;
nv50->state.semantic_color = colors;
nv50->state.semantic_psize = psiz;
BEGIN_RING(chan, RING_3D(NOPERSPECTIVE_BITMAP(0)), 4);
OUT_RINGp (chan, lin, 4);
BEGIN_RING(chan, RING_3D(GP_ENABLE), 1);
OUT_RING (chan, nv50->gmtyprog ? 1 : 0);
}