static void pass0_set_dst_scalar( struct brw_wm_compile *c,
struct brw_wm_instruction *out,
const struct prog_instruction *inst,
GLuint writemask )
{
if (writemask) {
const struct prog_dst_register *dst = &inst->DstReg;
GLuint i;
/* Compute only the first (X) value:
*/
out->writemask = WRITEMASK_X;
out->dst[0] = get_value(c);
/* Update our tracking register file for all the components in
* writemask:
*/
for (i = 0; i < 4; i++) {
if (writemask & (1<<i)) {
pass0_set_fpreg_value(c, dst->File, dst->Index, i, out->dst[0]);
}
}
}
else
out->writemask = 0;
}
/* Initialize payload "registers".
*/
static void pass0_init_payload( struct brw_wm_compile *c )
{
GLuint i;
for (i = 0; i < 4; i++) {
GLuint j = i >= (c->nr_payload_regs + 1) / 2 ? 0 : i;
pass0_set_fpreg_value( c, PROGRAM_PAYLOAD, PAYLOAD_DEPTH, i,
&c->payload.depth[j] );
}
#if 0
/* This seems to be an alternative to the INTERP_WPOS stuff I do
* elsewhere:
*/
if (c->key.source_depth_reg)
pass0_set_fpreg_value(c, PROGRAM_INPUT, FRAG_ATTRIB_WPOS, 2,
&c->payload.depth[c->key.source_depth_reg/2]);
#endif
for (i = 0; i < FRAG_ATTRIB_MAX; i++)
pass0_set_fpreg_value( c, PROGRAM_PAYLOAD, i, 0,
&c->payload.input_interp[i] );
}
static void pass0_set_dst( struct brw_wm_compile *c,
struct brw_wm_instruction *out,
const struct prog_instruction *inst,
GLuint writemask )
{
const struct prog_dst_register *dst = &inst->DstReg;
GLuint i;
for (i = 0; i < 4; i++) {
if (writemask & (1<<i)) {
out->dst[i] = get_value(c);
pass0_set_fpreg_value(c, dst->File, dst->Index, i, out->dst[i]);
}
}
out->writemask = writemask;
}
