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radeonsi: disable occlusion queries if they are not needed

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We always left them enabled, which turned off HiZ in some cases.
This should improve performace with Hyper-Z.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
This commit is contained in:
Marek Olšák 2014-08-23 11:12:01 +02:00
parent ab9ad91779
commit 78aa717601
1 changed files with 8 additions and 0 deletions
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8
src/gallium/drivers/radeonsi/si_state_draw.c
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@ -729,6 +729,14 @@ static void si_state_draw(struct si_context *sctx,
S_028004_PERFECT_ZPASS_COUNTS(1) |
S_028004_SAMPLE_RATE(sctx->framebuffer.log_samples));
}
} else {
/* Disable occlusion queries. */
if (sctx->b.chip_class >= CIK) {
si_pm4_set_reg(pm4, R_028004_DB_COUNT_CONTROL, 0);
} else {
si_pm4_set_reg(pm4, R_028004_DB_COUNT_CONTROL,
S_028004_ZPASS_INCREMENT_DISABLE(1));
}
}
if (info->count_from_stream_output) {