static void *
nvc0_blend_state_create(struct pipe_context *pipe,
const struct pipe_blend_state *cso)
{
struct nvc0_blend_stateobj *so = CALLOC_STRUCT(nvc0_blend_stateobj);
int i;
int r; /* reference */
uint8_t blend_en = 0;
bool indep_masks = false;
bool indep_funcs = false;
so->pipe = *cso;
/* check which states actually have differing values */
if (cso->independent_blend_enable) {
for (r = 0; r < 8 && !cso->rt[r].blend_enable; ++r);
blend_en |= 1 << r;
for (i = r + 1; i < 8; ++i) {
if (!cso->rt[i].blend_enable)
continue;
blend_en |= 1 << i;
if (cso->rt[i].rgb_func != cso->rt[r].rgb_func ||
cso->rt[i].rgb_src_factor != cso->rt[r].rgb_src_factor ||
cso->rt[i].rgb_dst_factor != cso->rt[r].rgb_dst_factor ||
cso->rt[i].alpha_func != cso->rt[r].alpha_func ||
cso->rt[i].alpha_src_factor != cso->rt[r].alpha_src_factor ||
cso->rt[i].alpha_dst_factor != cso->rt[r].alpha_dst_factor) {
indep_funcs = true;
break;
}
}
for (; i < 8; ++i)
blend_en |= (cso->rt[i].blend_enable ? 1 : 0) << i;
for (i = 1; i < 8; ++i) {
if (cso->rt[i].colormask != cso->rt[0].colormask) {
indep_masks = true;
break;
}
}
} else {
r = 0;
if (cso->rt[0].blend_enable)
blend_en = 0xff;
}
if (cso->logicop_enable) {
SB_BEGIN_3D(so, LOGIC_OP_ENABLE, 2);
SB_DATA (so, 1);
SB_DATA (so, nvgl_logicop_func(cso->logicop_func));
SB_IMMED_3D(so, MACRO_BLEND_ENABLES, 0);
} else {
SB_IMMED_3D(so, LOGIC_OP_ENABLE, 0);
SB_IMMED_3D(so, BLEND_INDEPENDENT, indep_funcs);
SB_IMMED_3D(so, MACRO_BLEND_ENABLES, blend_en);
if (indep_funcs) {
for (i = 0; i < 8; ++i) {
if (cso->rt[i].blend_enable) {
SB_BEGIN_3D(so, IBLEND_EQUATION_RGB(i), 6);
SB_DATA (so, nvgl_blend_eqn(cso->rt[i].rgb_func));
SB_DATA (so, nvc0_blend_fac(cso->rt[i].rgb_src_factor));
SB_DATA (so, nvc0_blend_fac(cso->rt[i].rgb_dst_factor));
SB_DATA (so, nvgl_blend_eqn(cso->rt[i].alpha_func));
SB_DATA (so, nvc0_blend_fac(cso->rt[i].alpha_src_factor));
SB_DATA (so, nvc0_blend_fac(cso->rt[i].alpha_dst_factor));
}
}
} else
if (blend_en) {
SB_BEGIN_3D(so, BLEND_EQUATION_RGB, 5);
SB_DATA (so, nvgl_blend_eqn(cso->rt[r].rgb_func));
SB_DATA (so, nvc0_blend_fac(cso->rt[r].rgb_src_factor));
SB_DATA (so, nvc0_blend_fac(cso->rt[r].rgb_dst_factor));
SB_DATA (so, nvgl_blend_eqn(cso->rt[r].alpha_func));
SB_DATA (so, nvc0_blend_fac(cso->rt[r].alpha_src_factor));
SB_BEGIN_3D(so, BLEND_FUNC_DST_ALPHA, 1);
SB_DATA (so, nvc0_blend_fac(cso->rt[r].alpha_dst_factor));
}
SB_IMMED_3D(so, COLOR_MASK_COMMON, !indep_masks);
if (indep_masks) {
SB_BEGIN_3D(so, COLOR_MASK(0), 8);
for (i = 0; i < 8; ++i)
SB_DATA(so, nvc0_colormask(cso->rt[i].colormask));
} else {
SB_BEGIN_3D(so, COLOR_MASK(0), 1);
SB_DATA (so, nvc0_colormask(cso->rt[0].colormask));
}
}
assert(so->size <= ARRAY_SIZE(so->state));
return so;
}
static void *
nvc0_blend_state_create(struct pipe_context *pipe,
const struct pipe_blend_state *cso)
{
struct nvc0_blend_stateobj *so = CALLOC_STRUCT(nvc0_blend_stateobj);
int i;
uint32_t ms;
so->pipe = *cso;
SB_IMMED_3D(so, BLEND_INDEPENDENT, cso->independent_blend_enable);
if (!cso->logicop_enable)
SB_IMMED_3D(so, LOGIC_OP_ENABLE, 0);
if (cso->logicop_enable) {
SB_BEGIN_3D(so, LOGIC_OP_ENABLE, 2);
SB_DATA (so, 1);
SB_DATA (so, nvgl_logicop_func(cso->logicop_func));
SB_IMMED_3D(so, BLEND_ENABLES, 0);
} else
if (!cso->independent_blend_enable) {
SB_IMMED_3D(so, BLEND_ENABLES, cso->rt[0].blend_enable ? 0xff : 0);
if (cso->rt[0].blend_enable) {
SB_BEGIN_3D(so, BLEND_EQUATION_RGB, 5);
SB_DATA (so, nvgl_blend_eqn(cso->rt[0].rgb_func));
SB_DATA (so, nvc0_blend_fac(cso->rt[0].rgb_src_factor));
SB_DATA (so, nvc0_blend_fac(cso->rt[0].rgb_dst_factor));
SB_DATA (so, nvgl_blend_eqn(cso->rt[0].alpha_func));
SB_DATA (so, nvc0_blend_fac(cso->rt[0].alpha_src_factor));
SB_BEGIN_3D(so, BLEND_FUNC_DST_ALPHA, 1);
SB_DATA (so, nvc0_blend_fac(cso->rt[0].alpha_dst_factor));
}
SB_IMMED_3D(so, COLOR_MASK_COMMON, 1);
SB_BEGIN_3D(so, COLOR_MASK(0), 1);
SB_DATA (so, nvc0_colormask(cso->rt[0].colormask));
} else {
uint8_t en = 0;
for (i = 0; i < 8; ++i) {
if (!cso->rt[i].blend_enable)
continue;
en |= 1 << i;
SB_BEGIN_3D(so, IBLEND_EQUATION_RGB(i), 6);
SB_DATA (so, nvgl_blend_eqn(cso->rt[i].rgb_func));
SB_DATA (so, nvc0_blend_fac(cso->rt[i].rgb_src_factor));
SB_DATA (so, nvc0_blend_fac(cso->rt[i].rgb_dst_factor));
SB_DATA (so, nvgl_blend_eqn(cso->rt[i].alpha_func));
SB_DATA (so, nvc0_blend_fac(cso->rt[i].alpha_src_factor));
SB_DATA (so, nvc0_blend_fac(cso->rt[i].alpha_dst_factor));
}
SB_IMMED_3D(so, BLEND_ENABLES, en);
SB_IMMED_3D(so, COLOR_MASK_COMMON, 0);
SB_BEGIN_3D(so, COLOR_MASK(0), 8);
for (i = 0; i < 8; ++i)
SB_DATA(so, nvc0_colormask(cso->rt[i].colormask));
}
ms = 0;
if (cso->alpha_to_coverage)
ms |= NVC0_3D_MULTISAMPLE_CTRL_ALPHA_TO_COVERAGE;
if (cso->alpha_to_one)
ms |= NVC0_3D_MULTISAMPLE_CTRL_ALPHA_TO_ONE;
SB_BEGIN_3D(so, MULTISAMPLE_CTRL, 1);
SB_DATA (so, ms);
assert(so->size <= (sizeof(so->state) / sizeof(so->state[0])));
return so;
}
