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tgsi: Update condition code vector when storing dest register.

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This commit is contained in:
Michal Krol 2008-08-18 17:18:58 +02:00
parent 56c30bf17b
commit e9ec60097c
1 changed files with 48 additions and 1 deletions
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49
src/gallium/auxiliary/tgsi/tgsi_exec.c
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@ -1121,12 +1121,14 @@ store_dest(
uint chan_index )
{
uint i;
union tgsi_exec_channel null;
union tgsi_exec_channel *dst;
uint execmask = mach->ExecMask;
switch (reg->DstRegister.File) {
case TGSI_FILE_NULL:
return;
dst = &null;
break;
case TGSI_FILE_OUTPUT:
dst = &mach->Outputs[mach->Temps[TEMP_OUTPUT_I].xyzw[TEMP_OUTPUT_C].u[0]
@ -1289,6 +1291,51 @@ store_dest(
default:
assert( 0 );
}
if (inst->InstructionExtNv.CondDstUpdate) {
union tgsi_exec_channel *cc = &mach->Temps[TEMP_CC_I].xyzw[TEMP_CC_C];
uint shift;
uint mask;
/* Only CC0 supported.
*/
assert( inst->InstructionExtNv.CondDstIndex < 1 );
switch (chan_index) {
case CHAN_X:
shift = TGSI_EXEC_CC_X_SHIFT;
mask = ~TGSI_EXEC_CC_X_MASK;
break;
case CHAN_Y:
shift = TGSI_EXEC_CC_Y_SHIFT;
mask = ~TGSI_EXEC_CC_Y_MASK;
break;
case CHAN_Z:
shift = TGSI_EXEC_CC_Z_SHIFT;
mask = ~TGSI_EXEC_CC_Z_MASK;
break;
case CHAN_W:
shift = TGSI_EXEC_CC_W_SHIFT;
mask = ~TGSI_EXEC_CC_W_MASK;
break;
default:
assert( 0 );
return;
}
for (i = 0; i < QUAD_SIZE; i++)
if (execmask & (1 << i)) {
cc->u[i] &= mask;
if (dst->f[i] < 0.0f)
cc->u[i] |= TGSI_EXEC_CC_LT << shift;
else if (dst->f[i] > 0.0f)
cc->u[i] |= TGSI_EXEC_CC_GT << shift;
else if (dst->f[i] == 0.0f)
cc->u[i] |= TGSI_EXEC_CC_EQ << shift;
else
cc->u[i] |= TGSI_EXEC_CC_UN << shift;
}
}
}
#define FETCH(VAL,INDEX,CHAN)\