static void alloc_regs( struct brw_sf_compile *c )
{
GLuint reg, i;
/* Values computed by fixed function unit:
*/
c->pv = retype(brw_vec1_grf(1, 1), BRW_REGISTER_TYPE_D);
c->det = brw_vec1_grf(1, 2);
c->dx0 = brw_vec1_grf(1, 3);
c->dx2 = brw_vec1_grf(1, 4);
c->dy0 = brw_vec1_grf(1, 5);
c->dy2 = brw_vec1_grf(1, 6);
/* z and 1/w passed in seperately:
*/
c->z[0] = brw_vec1_grf(2, 0);
c->inv_w[0] = brw_vec1_grf(2, 1);
c->z[1] = brw_vec1_grf(2, 2);
c->inv_w[1] = brw_vec1_grf(2, 3);
c->z[2] = brw_vec1_grf(2, 4);
c->inv_w[2] = brw_vec1_grf(2, 5);
/* The vertices:
*/
reg = 3;
for (i = 0; i < c->nr_verts; i++) {
c->vert[i] = brw_vec8_grf(reg, 0);
reg += c->nr_attr_regs;
}
/* Temporaries, allocated after last vertex reg.
*/
c->inv_det = brw_vec1_grf(reg, 0);
reg++;
c->a1_sub_a0 = brw_vec8_grf(reg, 0);
reg++;
c->a2_sub_a0 = brw_vec8_grf(reg, 0);
reg++;
c->tmp = brw_vec8_grf(reg, 0);
reg++;
/* Note grf allocation:
*/
c->prog_data.total_grf = reg;
/* Outputs of this program - interpolation coefficients for
* rasterization:
*/
c->m1Cx = brw_vec8_reg(BRW_MESSAGE_REGISTER_FILE, 1, 0);
c->m2Cy = brw_vec8_reg(BRW_MESSAGE_REGISTER_FILE, 2, 0);
c->m3C0 = brw_vec8_reg(BRW_MESSAGE_REGISTER_FILE, 3, 0);
}
static void
gen_PLN_MRF_GRF_GRF(struct brw_codegen *p)
{
struct brw_reg m6 = brw_vec8_reg(BRW_MESSAGE_REGISTER_FILE, 6, 0);
struct brw_reg interp = brw_vec1_grf(2, 0);
struct brw_reg g4 = brw_vec8_grf(4, 0);
brw_PLN(p, m6, interp, g4);
}
static void
gen_ADD_MRF_GRF_GRF(struct brw_codegen *p)
{
struct brw_reg m6 = brw_vec8_reg(BRW_MESSAGE_REGISTER_FILE, 6, 0);
struct brw_reg g2 = brw_vec8_grf(2, 0);
struct brw_reg g4 = brw_vec8_grf(4, 0);
brw_ADD(p, m6, g2, g4);
}
