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pan/bi: Map NIR tex ops to Bifrost ops

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Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7081>
This commit is contained in:
Alyssa Rosenzweig
2020-10-08 19:01:29 -04:00
parent f42eb33ad2
commit 125d18d915
1 changed files with 33 additions and 1 deletions
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src/panfrost/bifrost/bifrost_compile.c
+33 -1
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@@ -1101,6 +1101,38 @@ bi_emit_lod_88(bi_context *ctx, unsigned lod, bool fp16)
return mkvec.dest;
}
/* Map to the main texture op used. Some of these (txd in particular) will
* lower to multiple texture ops with different opcodes (GRDESC_DER + TEX in
* sequence). We assume that lowering is handled elsewhere.
*/
static enum bifrost_tex_op
bi_tex_op(nir_texop op)
{
switch (op) {
case nir_texop_tex:
case nir_texop_txb:
case nir_texop_txl:
case nir_texop_txd:
case nir_texop_tex_prefetch:
return BIFROST_TEX_OP_TEX;
case nir_texop_txf:
case nir_texop_txf_ms:
case nir_texop_txf_ms_fb:
case nir_texop_txf_ms_mcs:
case nir_texop_tg4:
return BIFROST_TEX_OP_FETCH;
case nir_texop_txs:
case nir_texop_lod:
case nir_texop_query_levels:
case nir_texop_texture_samples:
case nir_texop_samples_identical:
unreachable("should've been lowered");
default:
unreachable("unsupported tex op");
}
}
/* Data registers required by texturing in the order they appear. All are
* optional, the texture operation descriptor determines which are present.
* Note since 3D arrays are not permitted at an API level, Z_COORD and
@@ -1152,7 +1184,7 @@ emit_texc(bi_context *ctx, nir_tex_instr *instr)
.sampler_index_or_mode = instr->sampler_index,
.index = instr->texture_index,
.immediate_indices = 1, /* TODO */
.op = BIFROST_TEX_OP_TEX, /* TODO */
.op = bi_tex_op(instr->op),
.offset_or_bias_disable = false, /* TODO */
.shadow_or_clamp_disable = instr->is_shadow,
.array = false, /* TODO */