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authorJason Ekstrand <jason.ekstrand@intel.com>2018-06-26 08:22:17 -0700
committerJason Ekstrand <jason.ekstrand@intel.com>2019-01-14 10:16:52 -0600
commit4bd976e3b8b796353ce577fd543803d74886303e (patch)
tree60a8ef2b1bbf2ece4aa403d1023923f925483705 /src
parent3ec9ab80b870efffb5ba7c7a00b86b2df729ec6d (diff)
intel/blorp: Add two more filter modes
Diffstat (limited to 'src')
-rw-r--r--src/intel/blorp/blorp.h2
-rw-r--r--src/intel/blorp/blorp_blit.c62
2 files changed, 52 insertions, 12 deletions
diff --git a/src/intel/blorp/blorp.h b/src/intel/blorp/blorp.h
index 3487ea7cf46..fd17f95c118 100644
--- a/src/intel/blorp/blorp.h
+++ b/src/intel/blorp/blorp.h
@@ -125,6 +125,8 @@ enum blorp_filter {
BLORP_FILTER_BILINEAR,
BLORP_FILTER_SAMPLE_0,
BLORP_FILTER_AVERAGE,
+ BLORP_FILTER_MIN_SAMPLE,
+ BLORP_FILTER_MAX_SAMPLE,
};
void
diff --git a/src/intel/blorp/blorp_blit.c b/src/intel/blorp/blorp_blit.c
index 70240b33728..b4bd9aac19a 100644
--- a/src/intel/blorp/blorp_blit.c
+++ b/src/intel/blorp/blorp_blit.c
@@ -588,10 +588,11 @@ static inline int count_trailing_one_bits(unsigned value)
}
static nir_ssa_def *
-blorp_nir_manual_blend_average(nir_builder *b, struct brw_blorp_blit_vars *v,
- nir_ssa_def *pos, unsigned tex_samples,
- enum isl_aux_usage tex_aux_usage,
- nir_alu_type dst_type)
+blorp_nir_combine_samples(nir_builder *b, struct brw_blorp_blit_vars *v,
+ nir_ssa_def *pos, unsigned tex_samples,
+ enum isl_aux_usage tex_aux_usage,
+ nir_alu_type dst_type,
+ enum blorp_filter filter)
{
/* If non-null, this is the outer-most if statement */
nir_if *outer_if = NULL;
@@ -603,6 +604,35 @@ blorp_nir_manual_blend_average(nir_builder *b, struct brw_blorp_blit_vars *v,
if (tex_aux_usage == ISL_AUX_USAGE_MCS)
mcs = blorp_blit_txf_ms_mcs(b, v, pos);
+ nir_op combine_op;
+ switch (filter) {
+ case BLORP_FILTER_AVERAGE:
+ assert(dst_type == nir_type_float);
+ combine_op = nir_op_fadd;
+ break;
+
+ case BLORP_FILTER_MIN_SAMPLE:
+ switch (dst_type) {
+ case nir_type_int: combine_op = nir_op_imin; break;
+ case nir_type_uint: combine_op = nir_op_umin; break;
+ case nir_type_float: combine_op = nir_op_fmin; break;
+ default: unreachable("Invalid dst_type");
+ }
+ break;
+
+ case BLORP_FILTER_MAX_SAMPLE:
+ switch (dst_type) {
+ case nir_type_int: combine_op = nir_op_imax; break;
+ case nir_type_uint: combine_op = nir_op_umax; break;
+ case nir_type_float: combine_op = nir_op_fmax; break;
+ default: unreachable("Invalid dst_type");
+ }
+ break;
+
+ default:
+ unreachable("Invalid filter");
+ }
+
/* We add together samples using a binary tree structure, e.g. for 4x MSAA:
*
* result = ((sample[0] + sample[1]) + (sample[2] + sample[3])) / 4
@@ -689,18 +719,22 @@ blorp_nir_manual_blend_average(nir_builder *b, struct brw_blorp_blit_vars *v,
assert(stack_depth >= 2);
--stack_depth;
- assert(dst_type == nir_type_float);
texture_data[stack_depth - 1] =
- nir_fadd(b, texture_data[stack_depth - 1],
- texture_data[stack_depth]);
+ nir_build_alu(b, combine_op,
+ texture_data[stack_depth - 1],
+ texture_data[stack_depth],
+ NULL, NULL);
}
}
/* We should have just 1 sample on the stack now. */
assert(stack_depth == 1);
- texture_data[0] = nir_fmul(b, texture_data[0],
- nir_imm_float(b, 1.0 / tex_samples));
+ if (filter == BLORP_FILTER_AVERAGE) {
+ assert(dst_type == nir_type_float);
+ texture_data[0] = nir_fmul(b, texture_data[0],
+ nir_imm_float(b, 1.0 / tex_samples));
+ }
nir_store_var(b, color, texture_data[0], 0xf);
@@ -1351,6 +1385,8 @@ brw_blorp_build_nir_shader(struct blorp_context *blorp, void *mem_ctx,
break;
case BLORP_FILTER_AVERAGE:
+ case BLORP_FILTER_MIN_SAMPLE:
+ case BLORP_FILTER_MAX_SAMPLE:
assert(!key->src_tiled_w);
assert(key->tex_samples == key->src_samples);
assert(key->tex_layout == key->src_layout);
@@ -1369,15 +1405,17 @@ brw_blorp_build_nir_shader(struct blorp_context *blorp, void *mem_ctx,
* to multiply our X and Y coordinates each by 2 and then add 1.
*/
assert(key->src_coords_normalized);
+ assert(key->filter == BLORP_FILTER_AVERAGE);
src_pos = nir_fadd(&b,
nir_i2f32(&b, src_pos),
nir_imm_float(&b, 0.5f));
color = blorp_nir_tex(&b, &v, key, src_pos);
} else {
/* Gen7+ hardware doesn't automaticaly blend. */
- color = blorp_nir_manual_blend_average(&b, &v, src_pos, key->src_samples,
- key->tex_aux_usage,
- key->texture_data_type);
+ color = blorp_nir_combine_samples(&b, &v, src_pos, key->src_samples,
+ key->tex_aux_usage,
+ key->texture_data_type,
+ key->filter);
}
break;