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pan/bi: Allow dynamically uniform tex indices

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Passes the relevant tests of
dEQP-GLES31.functional.shaders.opaque_type_indexing.sampler.*, a few
failures that seem to relate to MRT instead of this.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9105>
This commit is contained in:
Alyssa Rosenzweig
2021-02-16 20:40:42 -05:00
committed by Marge Bot
parent dfe309e707
commit 02d68b9b83
1 changed files with 47 additions and 3 deletions
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50
src/panfrost/bifrost/bifrost_compile.c
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@@ -2192,9 +2192,6 @@ bi_emit_texc(bi_builder *b, nir_tex_instr *instr)
assert(instr->sampler_index < 16);
struct bifrost_texture_operation desc = {
.sampler_index_or_mode = instr->sampler_index,
.index = instr->texture_index,
.immediate_indices = 1, /* TODO */
.op = bi_tex_op(instr->op),
.offset_or_bias_disable = false, /* TODO */
.shadow_or_clamp_disable = instr->is_shadow,
@@ -2303,6 +2300,16 @@ bi_emit_texc(bi_builder *b, nir_tex_instr *instr)
dregs[BIFROST_TEX_DREG_SHADOW] = index;
break;
case nir_tex_src_texture_offset:
assert(instr->texture_index == 0);
dregs[BIFROST_TEX_DREG_TEXTURE] = index;
break;
case nir_tex_src_sampler_offset:
assert(instr->sampler_index == 0);
dregs[BIFROST_TEX_DREG_SAMPLER] = index;
break;
default:
unreachable("Unhandled src type in texc emit");
}
@@ -2313,6 +2320,43 @@ bi_emit_texc(bi_builder *b, nir_tex_instr *instr)
bi_emit_texc_lod_cube(b, bi_zero());
}
/* Choose an index mode */
bool direct_tex = bi_is_null(dregs[BIFROST_TEX_DREG_TEXTURE]);
bool direct_samp = bi_is_null(dregs[BIFROST_TEX_DREG_SAMPLER]);
bool direct = direct_tex && direct_samp;
desc.immediate_indices = direct && (instr->sampler_index < 16);
if (desc.immediate_indices) {
desc.sampler_index_or_mode = instr->sampler_index;
desc.index = instr->texture_index;
} else {
enum bifrost_index mode = 0;
if (direct && instr->sampler_index == instr->texture_index) {
mode = BIFROST_INDEX_IMMEDIATE_SHARED;
desc.index = instr->texture_index;
} else if (direct) {
mode = BIFROST_INDEX_IMMEDIATE_SAMPLER;
desc.index = instr->sampler_index;
dregs[BIFROST_TEX_DREG_TEXTURE] = bi_mov_i32(b,
bi_imm_u32(instr->texture_index));
} else if (direct_tex) {
assert(!direct_samp);
mode = BIFROST_INDEX_IMMEDIATE_TEXTURE;
desc.index = instr->texture_index;
} else if (direct_samp) {
assert(!direct_tex);
mode = BIFROST_INDEX_IMMEDIATE_SAMPLER;
desc.index = instr->sampler_index;
} else {
mode = BIFROST_INDEX_REGISTER;
}
desc.sampler_index_or_mode = mode | (0x3 << 2);
}
/* Allocate staging registers contiguously by compacting the array.
* Index is not SSA (tied operands) */