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cell: KILP is a predicated discard, KIL is a conditional discard.

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This commit is contained in:
Michal Krol
2008-08-13 11:10:58 +02:00
parent f0874d1a6b
commit e8e75c8c86
1 changed files with 17 additions and 4 deletions
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21
src/gallium/drivers/cell/spu/spu_exec.c
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@@ -603,8 +603,8 @@ store_dest(
* Kill fragment if any of the four values is less than zero.
*/
static void
exec_kilp(struct spu_exec_machine *mach,
const struct tgsi_full_instruction *inst)
exec_kil(struct spu_exec_machine *mach,
const struct tgsi_full_instruction *inst)
{
uint uniquemask;
uint chan_index;
@@ -640,6 +640,20 @@ exec_kilp(struct spu_exec_machine *mach,
mach->Temps[TEMP_KILMASK_I].xyzw[TEMP_KILMASK_C].u[0] |= kilmask;
}
/**
* Execute NVIDIA-style KIL which is predicated by a condition code.
* Kill fragment if the condition code is TRUE.
*/
static void
exec_kilp(struct tgsi_exec_machine *mach,
const struct tgsi_full_instruction *inst)
{
uint kilmask = 0; /* bit 0 = pixel 0, bit 1 = pixel 1, etc */
/* TODO: build kilmask from CC mask */
mach->Temps[TEMP_KILMASK_I].xyzw[TEMP_KILMASK_C].u[0] |= kilmask;
}
/*
* Fetch a texel using STR texture coordinates.
@@ -1336,8 +1350,7 @@ exec_instruction(
break;
case TGSI_OPCODE_KIL:
/* for enabled ExecMask bits, set the killed bit */
mach->Temps[TEMP_KILMASK_I].xyzw[TEMP_KILMASK_C].u[0] |= mach->ExecMask;
exec_kil (mach, inst);
break;
case TGSI_OPCODE_PK2H: