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freedreno/a4xx: rework vinterp/vpsrepl 

Same as previous commit, for a4xx.

Signed-off-by: Rob Clark <robclark@freedesktop.org>
This commit is contained in:
Rob Clark 2015-11-26 12:21:21 -05:00
parent 5adf4a5cda
commit 2fbe4e7d2f
1 changed files with 36 additions and 12 deletions
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48
src/gallium/drivers/freedreno/a4xx/fd4_program.c
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@ -479,24 +479,27 @@ fd4_program_emit(struct fd_ringbuffer *ring, struct fd4_emit *emit,
*/
/* figure out VARYING_INTERP / VARYING_PS_REPL register values: */
for (j = -1; (j = ir3_next_varying(s[FS].v, j)) < (int)s[FS].v->inputs_count; ) {
/* NOTE: varyings are packed, so if compmask is 0xb
* then first, third, and fourth component occupy
* three consecutive varying slots:
*/
unsigned compmask = s[FS].v->inputs[j].compmask;
/* TODO might be cleaner to just +8 in SP_VS_VPC_DST_REG
* instead.. rather than -8 everywhere else..
*/
uint32_t inloc = s[FS].v->inputs[j].inloc - 8;
/* currently assuming varyings aligned to 4 (not
* packed):
*/
debug_assert((inloc % 4) == 0);
if ((s[FS].v->inputs[j].interpolate == INTERP_QUALIFIER_FLAT) ||
(s[FS].v->inputs[j].rasterflat && emit->rasterflat)) {
uint32_t loc = inloc;
for (i = 0; i < 4; i++, loc++) {
vinterp[loc / 16] |= 1 << ((loc % 16) * 2);
//flatshade[loc / 32] |= 1 << (loc % 32);
for (i = 0; i < 4; i++) {
if (compmask & (1 << i)) {
vinterp[loc / 16] |= 1 << ((loc % 16) * 2);
//flatshade[loc / 32] |= 1 << (loc % 32);
loc++;
}
}
}
@ -509,10 +512,31 @@ fd4_program_emit(struct fd_ringbuffer *ring, struct fd4_emit *emit,
* interpolation bits for .zw such that they become .01
*/
if (emit->sprite_coord_enable & texmask) {
vpsrepl[inloc / 16] |= (emit->sprite_coord_mode ? 0x0d : 0x09)
<< ((inloc % 16) * 2);
vinterp[(inloc + 2) / 16] |= 2 << (((inloc + 2) % 16) * 2);
vinterp[(inloc + 3) / 16] |= 3 << (((inloc + 3) % 16) * 2);
/* mask is two 2-bit fields, where:
* '01' -> S
* '10' -> T
* '11' -> 1 - T (flip mode)
*/
unsigned mask = emit->sprite_coord_mode ? 0b1101 : 0b1001;
uint32_t loc = inloc;
if (compmask & 0x1) {
vpsrepl[loc / 16] |= ((mask >> 0) & 0x3) << ((loc % 16) * 2);
loc++;
}
if (compmask & 0x2) {
vpsrepl[loc / 16] |= ((mask >> 2) & 0x3) << ((loc % 16) * 2);
loc++;
}
if (compmask & 0x4) {
/* .z <- 0.0f */
vinterp[loc / 16] |= 0b10 << ((loc % 16) * 2);
loc++;
}
if (compmask & 0x8) {
/* .w <- 1.0f */
vinterp[loc / 16] |= 0b11 << ((loc % 16) * 2);
loc++;
}
}
}
}