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-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_exec.c46
-rw-r--r--src/gallium/auxiliary/tgsi/tgsi_exec.h2
2 files changed, 35 insertions, 13 deletions
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.c b/src/gallium/auxiliary/tgsi/tgsi_exec.c
index b2dc24c2fe..36682bbd30 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.c
@@ -1461,6 +1461,13 @@ store_dest(
dst = &mach->Addrs[index].xyzw[chan_index];
break;
+ case TGSI_FILE_LOOP:
+ assert(reg->DstRegister.Index == 0);
+ assert(mach->LoopCounterStackTop > 0);
+ assert(chan_index == CHAN_X);
+ dst = &mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[chan_index];
+ break;
+
case TGSI_FILE_PREDICATE:
index = reg->DstRegister.Index;
assert(index < TGSI_EXEC_NUM_PREDS);
@@ -3031,8 +3038,23 @@ exec_instruction(
for (chan_index = 0; chan_index < 3; chan_index++) {
FETCH( &mach->LoopCounterStack[mach->LoopCounterStackTop].xyzw[chan_index], 0, chan_index );
}
- STORE( &mach->LoopCounterStack[mach->LoopCounterStackTop].xyzw[CHAN_Y], 0, CHAN_X );
++mach->LoopCounterStackTop;
+ STORE(&mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_X], 0, CHAN_X);
+ /* update LoopMask */
+ if (mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y].f[0] <= 0.0f) {
+ mach->LoopMask &= ~0x1;
+ }
+ if (mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y].f[1] <= 0.0f) {
+ mach->LoopMask &= ~0x2;
+ }
+ if (mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y].f[2] <= 0.0f) {
+ mach->LoopMask &= ~0x4;
+ }
+ if (mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y].f[3] <= 0.0f) {
+ mach->LoopMask &= ~0x8;
+ }
+ /* TODO: if mach->LoopMask == 0, jump to end of loop */
+ UPDATE_EXEC_MASK(mach);
/* fall-through (for now) */
case TGSI_OPCODE_BGNLOOP:
/* push LoopMask and ContMasks */
@@ -3046,28 +3068,28 @@ exec_instruction(
case TGSI_OPCODE_ENDFOR:
assert(mach->LoopCounterStackTop > 0);
- micro_sub( &mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_X],
- &mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_X],
- &mach->Temps[TEMP_1_I].xyzw[TEMP_1_C] );
+ micro_sub(&mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y],
+ &mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y],
+ &mach->Temps[TEMP_1_I].xyzw[TEMP_1_C]);
/* update LoopMask */
- if( mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_X].f[0] <= 0) {
+ if (mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y].f[0] <= 0.0f) {
mach->LoopMask &= ~0x1;
}
- if( mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_X].f[1] <= 0 ) {
+ if (mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y].f[1] <= 0.0f) {
mach->LoopMask &= ~0x2;
}
- if( mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_X].f[2] <= 0 ) {
+ if (mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y].f[2] <= 0.0f) {
mach->LoopMask &= ~0x4;
}
- if( mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_X].f[3] <= 0 ) {
+ if (mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y].f[3] <= 0.0f) {
mach->LoopMask &= ~0x8;
}
- micro_add( &mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y],
- &mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Y],
- &mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Z]);
+ micro_add(&mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_X],
+ &mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_X],
+ &mach->LoopCounterStack[mach->LoopCounterStackTop - 1].xyzw[CHAN_Z]);
assert(mach->LoopLabelStackTop > 0);
inst = mach->Instructions + mach->LoopLabelStack[mach->LoopLabelStackTop - 1];
- STORE( &mach->LoopCounterStack[mach->LoopCounterStackTop].xyzw[CHAN_Y], 0, CHAN_X );
+ STORE(&mach->LoopCounterStack[mach->LoopCounterStackTop].xyzw[CHAN_X], 0, CHAN_X);
/* Restore ContMask, but don't pop */
assert(mach->ContStackTop > 0);
mach->ContMask = mach->ContStack[mach->ContStackTop - 1];
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.h b/src/gallium/auxiliary/tgsi/tgsi_exec.h
index 471f591dd6..f0aaca92b3 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.h
@@ -252,7 +252,7 @@ struct tgsi_exec_machine
uint LoopLabelStack[TGSI_EXEC_MAX_LOOP_NESTING];
int LoopLabelStackTop;
- /** Loop counter stack (x = count, y = current, z = step) */
+ /** Loop counter stack (x = index, y = counter, z = step) */
struct tgsi_exec_vector LoopCounterStack[TGSI_EXEC_MAX_LOOP_NESTING];
int LoopCounterStackTop;