Mesa (master): tgsi: Implement predicated instructions in exec.
MichaŠKról
michal at kemper.freedesktop.org
Tue Nov 24 08:06:16 UTC 2009
Module: Mesa
Branch: master
Commit: 0c54d76f3783091267cb18e6bd23697d024c95b2
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=0c54d76f3783091267cb18e6bd23697d024c95b2
Author: Michal Krol <michal at vmware.com>
Date: Tue Nov 24 09:03:41 2009 +0100
tgsi: Implement predicated instructions in exec.
---
src/gallium/auxiliary/tgsi/tgsi_exec.c | 52 ++++++++++++++++++++++++++++---
src/gallium/auxiliary/tgsi/tgsi_exec.h | 1 +
2 files changed, 48 insertions(+), 5 deletions(-)
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index af914f6..89740ce 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -369,6 +369,7 @@ tgsi_exec_machine_create( void )
memset(mach, 0, sizeof(*mach));
mach->Addrs = &mach->Temps[TGSI_EXEC_TEMP_ADDR];
+ mach->Predicates = &mach->Temps[TGSI_EXEC_TEMP_P0];
/* Setup constants. */
for( i = 0; i < 4; i++ ) {
@@ -1194,10 +1195,10 @@ fetch_src_file_channel(
assert(index->i[1] < TGSI_EXEC_NUM_PREDS);
assert(index->i[2] < TGSI_EXEC_NUM_PREDS);
assert(index->i[3] < TGSI_EXEC_NUM_PREDS);
- chan->u[0] = mach->Addrs[0].xyzw[swizzle].u[0];
- chan->u[1] = mach->Addrs[0].xyzw[swizzle].u[1];
- chan->u[2] = mach->Addrs[0].xyzw[swizzle].u[2];
- chan->u[3] = mach->Addrs[0].xyzw[swizzle].u[3];
+ chan->u[0] = mach->Predicates[0].xyzw[swizzle].u[0];
+ chan->u[1] = mach->Predicates[0].xyzw[swizzle].u[1];
+ chan->u[2] = mach->Predicates[0].xyzw[swizzle].u[2];
+ chan->u[3] = mach->Predicates[0].xyzw[swizzle].u[3];
break;
case TGSI_FILE_OUTPUT:
@@ -1489,7 +1490,7 @@ store_dest(
case TGSI_FILE_PREDICATE:
index = reg->DstRegister.Index;
assert(index < TGSI_EXEC_NUM_PREDS);
- dst = &mach->Addrs[index].xyzw[chan_index];
+ dst = &mach->Predicates[index].xyzw[chan_index];
break;
default:
@@ -1497,6 +1498,47 @@ store_dest(
return;
}
+ if (inst->Instruction.Predicate) {
+ uint swizzle;
+ union tgsi_exec_channel *pred;
+
+ switch (chan_index) {
+ case CHAN_X:
+ swizzle = inst->InstructionPredicate.SwizzleX;
+ break;
+ case CHAN_Y:
+ swizzle = inst->InstructionPredicate.SwizzleY;
+ break;
+ case CHAN_Z:
+ swizzle = inst->InstructionPredicate.SwizzleZ;
+ break;
+ case CHAN_W:
+ swizzle = inst->InstructionPredicate.SwizzleW;
+ break;
+ default:
+ assert(0);
+ return;
+ }
+
+ assert(inst->InstructionPredicate.Index == 0);
+
+ pred = &mach->Predicates[inst->InstructionPredicate.Index].xyzw[swizzle];
+
+ if (inst->InstructionPredicate.Negate) {
+ for (i = 0; i < QUAD_SIZE; i++) {
+ if (pred->u[i]) {
+ execmask &= ~(1 << i);
+ }
+ }
+ } else {
+ for (i = 0; i < QUAD_SIZE; i++) {
+ if (!pred->u[i]) {
+ execmask &= ~(1 << i);
+ }
+ }
+ }
+ }
+
switch (inst->Instruction.Saturate) {
case TGSI_SAT_NONE:
for (i = 0; i < QUAD_SIZE; i++)
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.h b/src/gallium/auxiliary/tgsi/tgsi_exec.h
index 3dff69a..fd94c1b 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.h
@@ -218,6 +218,7 @@ struct tgsi_exec_machine
struct tgsi_exec_vector Outputs[PIPE_MAX_ATTRIBS];
struct tgsi_exec_vector *Addrs;
+ struct tgsi_exec_vector *Predicates;
struct tgsi_sampler **Samplers;
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